{"id":7058,"date":"2022-06-04T15:00:44","date_gmt":"2022-06-04T09:30:44","guid":{"rendered":"https:\/\/cbselibrary.com\/?p=7058"},"modified":"2023-01-25T11:05:32","modified_gmt":"2023-01-25T05:35:32","slug":"cell-division-icse-solutions-class-10-biology","status":"publish","type":"post","link":"https:\/\/cbselibrary.com\/cell-division-icse-solutions-class-10-biology\/","title":{"rendered":"ICSE Solutions for Class 10 Biology &#8211; Cell Division"},"content":{"rendered":"<h2><span style=\"color: #00ccff;\">ICSE Solutions for Class 10 Biology &#8211; Cell Division<\/span><\/h2>\n<p><a class=\"button-red\" title=\"ICSE Solutions for Class 10, 9, 8, 7 and 6\" href=\"https:\/\/cbselibrary.com\/icse-solutions\/\">ICSE Solutions<\/a><a class=\"button-blue\" title=\"Selina Concise ICSE Solutions for Class 10, 9, 8, 7 and 6\" href=\"https:\/\/cbselibrary.com\/selina-concise-icse-solutions\/\">Selina ICSE Solutions<\/a><\/p>\n<p>APlusTopper.com provides ICSE Solutions for Class 10 Biology Chapter 1 Cell Division for ICSE Board Examinations. We provide step by step Solutions for ICSE Biology Class 10 Solutions Pdf.\u00a0You can download the Class 10 Biology ICSE Textbook Solutions with Free PDF download option.<\/p>\n<p><a class=\"button-red\" title=\"Formulae Handbook For ICSE Class 9 and 10 Maths and Science\" href=\"https:\/\/goo.gl\/FCvuh4\">Download Formulae Handbook For ICSE Class 9 and 10<\/a><\/p>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">Short Questions<\/span><\/h3>\n<p><strong>Question 1:<\/strong> What is direct <a href=\"https:\/\/cbselibrary.com\/the-cell-in-science\/\">cell division<\/a> ? Explain with an example.<br \/>\n<strong>Answer:<\/strong> Amitosis is the direct cell division. It is the simplest type of cell division in which there is no spindle formation or condensation of fibres. Nucleus is directly divided into two, e.g., bacteria.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-93848\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-1.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 1\" width=\"250\" height=\"250\" srcset=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-1.png 250w, https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-1-150x150.png 150w, https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-1-100x100.png 100w\" sizes=\"(max-width: 250px) 100vw, 250px\" \/><\/p>\n<p><strong>Question 2:<\/strong> Name the two kinds of cell division found in living organisms.<br \/>\n<strong>Answer:<\/strong> Meiosis and Mitosis.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-93849\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-2.gif\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 2\" width=\"799\" height=\"458\" \/><\/p>\n<p><iframe loading=\"lazy\" title=\"Cell Cycle, Mitosis and Meiosis\" width=\"1200\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/2aVnN4RePyI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p><strong>Question 3:<\/strong> What type of cell division does occur in somatic cells of the body ?<br \/>\n<strong>Answer:<\/strong> The mitotic cell division occurs in somatic cells of the body.<\/p>\n<p><strong>Question 4:<\/strong> Where does the meiosis occur in our body ?<br \/>\n<strong>Answer:<\/strong> In our body meiosis occurs in germ cells i.e. in gonads.<\/p>\n<p><strong>Question 5:<\/strong> What do you mean by cell-cycle ?<br \/>\n<strong>Answer:<\/strong> Every cell capable of cell division passes through different stages or phases in a cyclic maimer. It is called the cell cycle.<\/p>\n<p><strong>Question 6:<\/strong> Write the name of various steps of cell cycle.<br \/>\n<strong>Answer:<\/strong> Cell Cycle<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-93850\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-3.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 3\" width=\"448\" height=\"165\" srcset=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-3.png 448w, https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-3-300x110.png 300w\" sizes=\"(max-width: 448px) 100vw, 448px\" \/><\/p>\n<p><strong>Question 7:<\/strong> Name the structure which initiates cell division ?<br \/>\n<strong>Answer:<\/strong> Centriole (Centrosome).<\/p>\n<p><strong>Question 8:<\/strong> Why gametes have a haploid number of chromosomes ?<br \/>\n<strong>Answer:<\/strong> The gametes are produced as a result of meiosis hence they have haploid number of chromosomes.<\/p>\n<p><strong>Question 9:<\/strong> Mention three significant changes that occur in a cell during interphase.<br \/>\n<strong>Answer:<\/strong> The three significant changes that occur in a cell during interphase are:<br \/>\n(i) The cell grows in size.<br \/>\n(ii) New DNA is synthesized as per the old DNA templet.<br \/>\n(iii) Synthesis of RNA and protein takes place.<\/p>\n<p><strong>Question 10:<\/strong> What is cytokinesis ?<br \/>\n<strong>Answer:<\/strong> During cell division karyokinesis (division of nucleus) is followed by the division of <a href=\"https:\/\/cbselibrary.com\/structure-of-a-generalized-cell\/\">cytoplasm<\/a>. It is called cytokinesis. Or in other words cytokinesis is the division of cytoplasm.<\/p>\n<p><strong>Question 11:<\/strong> How does colchicine act as mitotic poison ? Is there any advantage of it ?<br \/>\n<strong>Answer:<\/strong> Colchicine is an alkaloid obtained from Autumn crocus (Colchicum autumnale). It inhibits the formation of mitotic spindle. As a result, chromosomes duplicate but they remain within the same cell, increasing in number (endoduplication). Such cells are called polyploid cells.<br \/>\nIts advantage is that, plant breeders have used colchicine-induced polyploidy as a means of producing variants of agricultural and horticultural crops.<\/p>\n<p><strong>Question 12:<\/strong> Explain the significance of mitosis.<br \/>\n<strong>Answer:<\/strong> (i) It helps to maintain linear heredity of an organism by keeping the chromosome number constant in daughter cells.<br \/>\n(ii) It helps in development of organism from zygotic stage to adult stage.<br \/>\n(iii) It is the means of repair and regeneration of cells.<br \/>\n(iv) <a href=\"https:\/\/cbselibrary.com\/different-types-asexual-reproduction\/\">Asexual reproduction<\/a> is accomplished only through mitosis.<br \/>\n(v) Details of mitosis are similar in all organisms which emphasizes the unity of life.<\/p>\n<p><strong>Question 13:<\/strong> Why is meiosis referred to as reduction division ?<br \/>\n<strong>Answer:<\/strong> The meiosis is referred to as reduction division because the number of chromosomes in the daughter cells is half than that of the mother cell.<\/p>\n<p><strong>Question 14:<\/strong> What is the importance of meiosis in creating variations ?<br \/>\n<strong>Answer:<\/strong> During meiosis, the exchange of chromosomal material takes place between the non-sister chromatids forming new combinations. These new combinations give rise to variations which result in the evolution of species and even in the origin of new species.<\/p>\n<p><strong>Question 15:<\/strong> State how does meiosis maintain chromosome number in a species.<br \/>\n<strong>Answer:<\/strong> The gametes are formed by meiosis. During meiosis the number of chromosomes is reduced to half i.e. the gametes contain haploid number of chromosomes. The male and female gametes fuse to form a diploid zygote. In this way meiosis maintains chromosome number in a species.<\/p>\n<p><strong>Question 16:<\/strong> How prophase-I of meiosis differs from prophase of mitosis in an essential way ? Describe how it affects the daughter cells ?<br \/>\n<strong>Answer:<\/strong> Prophase-I of meiosis has five sub-stages namely Leptotene, Zygotene, Pachytene, Diplotene and Diakinesis. In pachytene exchange of genetic material between non-sister chromatids takes place through crossing over and chiasma formation which does not occur in prophase of mitosis. As a result, the daughter cells have a variation in their genetic composition contrary to identical daughter cells of mitosis.<\/p>\n<p><strong>Question 17:<\/strong> What is the importance of chiasma formation ?<br \/>\n<strong>Answer:<\/strong> Chiasma is the region where crossing-over takes place. By the formation of chiasma, exchange of genetic material between non-sister chromatids of the homologous chromosomes is accomplished. So, chiasma is the means of bringing about recombination of characters and thus variations in multicellular organisms.<\/p>\n<p><strong>Question 18:<\/strong> What is the importance of meiosis?<br \/>\n<strong>Answer:<\/strong> The meiosis is important to maintain the constant number of chromosomes in a species. It also brings about variations which result in the evolution or origin of new species.<\/p>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">Give Reasons<\/span><\/h3>\n<p><strong>Question 1:<\/strong> The mitosis is called equational division.<br \/>\n<strong>Answer:<\/strong> Mitosis is called equational division because during mitosis the cell divides equally into two identical daughter cells.<\/p>\n<p><strong>Question 2:<\/strong> The meiosis is called reductional division.<br \/>\n<strong>Answer:<\/strong> The meiosis is called reductional cell division since the four daughter cells formed have half the number of chromosomes than the mother cell.<\/p>\n<p><strong>Question 3:<\/strong> Gametes must be produced by meiosis for sexual reproduction.<br \/>\n<strong>Answer:<\/strong> The number of chromosomes in sex cell is halved.<\/p>\n<p><strong>Question 4:<\/strong> Chromosomes are the carriers of heredity.<br \/>\n<strong>Answer:<\/strong> The chromosomes contain gene which carry specific features to the offsprings.<\/p>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">Differentiate<\/span><\/h3>\n<p><strong>Question 1:\u00a0<\/strong>Mitosis and Meiosis.<br \/>\n<strong>Answer:<\/strong><\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"319\"><strong>Mitosis<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"319\"><strong>Meiosis<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"319\">(i) It occurs in somatic cells.<\/td>\n<td width=\"319\">It occurs in generative cells.<\/td>\n<\/tr>\n<tr>\n<td width=\"319\">(ii) It involves a single division resulting into two daughter cells.<\/td>\n<td width=\"319\">It involves two successive divisions resulting in the formation of four daughter nuclei.<\/td>\n<\/tr>\n<tr>\n<td width=\"319\">(iii) Prophase is short and simple.<\/td>\n<td width=\"319\">Prophase is of longer duration and complex.<\/td>\n<\/tr>\n<tr>\n<td width=\"319\">(iv) Number of chromosomes in daughter cells is equal to that of parent cell.<\/td>\n<td width=\"319\">Number of chromosomes in daughter cells is half to that of the mother cells.<\/td>\n<\/tr>\n<tr>\n<td width=\"319\">(v) Equational division.<\/td>\n<td width=\"319\">Reductional division.<\/td>\n<\/tr>\n<tr>\n<td width=\"319\">(vi) Mitosis brings about growth, repair and healing.<\/td>\n<td width=\"319\">Meiosis forms gametes and spores and maintains the chromosome number constant from generation to generation.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><iframe loading=\"lazy\" title=\"Comparing Mitosis and Meiosis\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/re2Y0HGq2hQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p><strong>Question 2:\u00a0<\/strong>Chromatin and Chromosome.<br \/>\n<strong>Answer:<\/strong><\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"319\"><strong>Chromatin<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"319\"><strong>Chromosome<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"319\">(i) Uncondensed form of nucleoprotein.<\/td>\n<td width=\"319\">Condensed form of nucleoprotein.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\" width=\"319\">(ii) Seen in interphase stage of cell division.<\/td>\n<td style=\"text-align: left;\" width=\"319\">Seen in M-phase.<\/td>\n<\/tr>\n<tr>\n<td width=\"319\">(iii) Control of metabolic activities.<\/td>\n<td width=\"319\">Vehicles of heredity.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Question 3:\u00a0<\/strong>Centrifugal cytokinesis and Centripetal cytokinesis.<br \/>\n<strong>Answer:<\/strong><\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"319\"><strong>Centrifugal cytokinesis<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"319\"><strong>Centripetal cytokinesis<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"319\">During the partition of the cytoplasm following karyokinesis, when the cell plate formation begins in the centre and proceeds towards outwards, the division is said to be centrifugal.<\/td>\n<td width=\"319\">When the cell membrane starts constricting from the sides and proceeds inwards, till the mother cell is divided into two daughter cells, the division is known as centripetal cytokinesis.<\/td>\n<\/tr>\n<tr>\n<td width=\"319\">All plant cells follow centrifugal cytokinesis by cell plate formation.<\/td>\n<td width=\"319\">All animal cells follow centripetal cytokinesis through cell furrow formation.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Question 4:\u00a0<\/strong>Anaphase of Mitosis and Anaphase of Meiosis-I.<br \/>\n<strong>Answer:<\/strong><\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"287\"><strong>Anaphase of mitosis<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"289\"><strong>Anaphase of meiosis-I<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"287\">During this phase of mitosis the centromeres divide, the spindle fibres contract and move towards opposite poles, pulling the daughter chromosomes apart.<\/td>\n<td width=\"289\">With the contraction of microtubules of the spindle apparatus each homologous chromosome with its two chromatids and unbroken centromeres (unlike anaphase of mitosis) start moving towards the opposite poles of the cell.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Question 5:\u00a0<\/strong>Gametic meiosis and Zygotic meiosis.<br \/>\n<strong>Answer:<\/strong><\/p>\n<table border=\"2\" width=\"638\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"319\"><strong>Gametic meiosis<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"319\"><strong>Zygotic meiosis<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"319\">When the reproductive cells of a diploid organism undergoes meiosis to produce haploid gametes, it is called gametic meiosis.<\/td>\n<td width=\"319\">Some algae and fungi are haploid adults. They produce haploid gametes which upon fertilization form a diploid zygote. This\u2018zygote undergoes meiosis to form haploid spores, which on repeated mitotic division form the adult body.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Question 6:\u00a0<\/strong>Cytokinesis and Karyokinesis.<br \/>\n<strong>Answer:<\/strong><\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><strong>Cytokinesis<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Karyokinesis<\/strong><\/td>\n<\/tr>\n<tr>\n<td>It is the division of cytoplasm.<\/td>\n<td>It is the division of nucleus.<\/td>\n<\/tr>\n<tr>\n<td>It is followed by Karyokinesis.<\/td>\n<td>It is the first division.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Question 7:\u00a0<\/strong>Chiasmata and crossing over.<br \/>\n<strong>Answer:<\/strong><\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"288\"><strong>Chiasmata<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"290\"><strong>Crossing Over<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\" width=\"288\">It is the part of attachment of non-sister chromatids of homologous chromosomes where crossing over takes place.<\/td>\n<td style=\"text-align: left;\" width=\"290\">It is exchange of genetic material between non-sister chromatids of homologous chromosomes.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Question 8:\u00a0<\/strong>Centrosome and centromere.<br \/>\n<strong>Answer:<\/strong><\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"319\"><strong>Centrosome<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"319\"><strong>Centromere<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"319\">It is an organelle of the animal cell.<\/td>\n<td width=\"319\">It is a non-stainable part of chromo-some at which two chromatids join.<\/td>\n<\/tr>\n<tr>\n<td width=\"319\">It contains two centrioles which move towards the opposite poles and forms spindle fibres during cell division.<\/td>\n<td width=\"319\">It provides attachment of spindle fibres during cell division.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Question 9:<\/strong>\u00a0Cytokinesis in plant and animal cell.<br \/>\n<strong>Answer:<\/strong><\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"319\"><strong>Cytokinesis in plant cell<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"319\"><strong>Cytokinesis in animal cell<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"319\">It starts with a plate formation.<\/td>\n<td width=\"319\">Plate formation is absent. A constriction forms in the middle of cell membrane.<\/td>\n<\/tr>\n<tr>\n<td width=\"319\">It is centrifugal.<\/td>\n<td width=\"319\">It is centripetal.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">Diagram Based Questions<\/span><\/h3>\n<p><strong>Question 1:<\/strong> Identify the stages of mitosis given below and label the figures.<br \/>\n<strong><img loading=\"lazy\" class=\"alignnone size-full wp-image-93853\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-4.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 4\" width=\"588\" height=\"178\" srcset=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-4.png 588w, https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-4-300x91.png 300w\" sizes=\"(max-width: 588px) 100vw, 588px\" \/><br \/>\nAnswer:<\/strong> (a) Anaphase, (b) Metaphase, (c) Telophase.<br \/>\n1. Centriole, 2. Spindle fibres, 3. Chromosomes, 4. Centromere. 5. Daughter nuclei.<\/p>\n<p><strong>Question 2:<\/strong> Identify the stages of meiosven below and label them.<br \/>\n<strong><img loading=\"lazy\" class=\"alignnone size-full wp-image-93854\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-5.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 5\" width=\"601\" height=\"164\" srcset=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-5.png 601w, https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-5-300x82.png 300w\" sizes=\"(max-width: 601px) 100vw, 601px\" \/><br \/>\nAnswer:<\/strong> (a) Anaphase I, (b) Telophase I.<\/p>\n<p><strong>Question 3:<\/strong> The diagram below represents a certain stage of a cell.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-93857\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-6.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 6\" width=\"112\" height=\"129\" \/><br \/>\n(i) Is it an animal cell or a plant cell ? Give one reason in support of your answer.<br \/>\n(ii) Label the parts numbered 1 &#8211; 3.<br \/>\n(iii) Which stage (phase) of mitosis is represented in this diagram.<br \/>\n<strong>Answer:<\/strong> (i) It is a plant cell because it has cell wall.<br \/>\n(ii) 1. Chromatids 2. Spindle fibres 3. Centromere.<br \/>\n(iii) Anaphase.<\/p>\n<p><strong>Question 4:<\/strong> (i) Draw a neat labeled diagram to show the metaphase stage of mitosis in an animal cell having \u20186\u2019 chromosome.<br \/>\n(ii) How many daughter cells are formed at the end of mitosis and at the end of meiosis?<br \/>\n(iii) With reference to cell division explain the following terms:<br \/>\n(Chromatid, Centromere, Haploid).<br \/>\n(iv) Name the type of cell division that occurs during:<br \/>\n1. Growth of shoot 2. Formation of pollen grains.<br \/>\n3. Repair of worn out tissues.<br \/>\n<strong>Answer:<\/strong> (i) See diagram.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-93858\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-7.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 7\" width=\"287\" height=\"201\" \/><br \/>\n(ii) <strong>Mitosis:<\/strong> two daughter cells.<br \/>\n<strong>Meiosis:<\/strong> four daughter oeils.<br \/>\n(iii) <strong>Chromatid:<\/strong> Duplicated chromosomes consist of two identical strands, each of these is called a chromatid.<br \/>\n<strong>Centromere:<\/strong> It is the point at which the two chromatids remain attached. It is also the point of attachment for spindles.<br \/>\n<strong>Haploid:<\/strong> A cell having only one set of chromosomes is called haploid.<br \/>\n(iv) 1. Mitosis<br \/>\n2. Meiosis<br \/>\n3. Mitosis<\/p>\n<p><strong>Question 5:<\/strong> The diagram below represents a stage during cell division. Study the same and then answer, the questions, that follow :<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-93859\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-8.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 8\" width=\"191\" height=\"203\" \/><br \/>\n(i) Name the parts labelled 1, 2 and 3.<br \/>\n(ii) Identify the above stage and give a reason to support your answer.<br \/>\n(iii) Mentldh where in the body this type of cell division occurs.<br \/>\n(iv) Name the stage prior to this stage and draw a diagram to represent the same.<br \/>\n<strong>Answer:<\/strong> (i) 1. Centriole<br \/>\n2. Spindle fibres<br \/>\n3. Chromatid<br \/>\n(ii) Anaphase\u2014The daughter chromosomes are reaching to the opposite poles of the cell.<br \/>\n(iii) In the somatic cells of the body.<br \/>\n(iv) Metaphase<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-93860\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-9.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 9\" width=\"384\" height=\"263\" srcset=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-9.png 384w, https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-9-300x205.png 300w\" sizes=\"(max-width: 384px) 100vw, 384px\" \/><\/p>\n<p><strong>Question 6:<\/strong> In the given diagram name the parts labeled 1, 2, 3,4 and 5 and describe about them in short.<br \/>\n<strong><img loading=\"lazy\" class=\"alignnone size-full wp-image-93861\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-10.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 10\" width=\"479\" height=\"164\" srcset=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-10.png 479w, https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-10-300x103.png 300w\" sizes=\"(max-width: 479px) 100vw, 479px\" \/><br \/>\nAnswer:<\/strong> 1. <strong>Pellicie:<\/strong> The matrix of chromosome is enclosed in a sheath called as pellicle.<br \/>\n2. <strong>Matrix:<\/strong> The chromatin of chromosome is embedded in the achromatic substance known as matrix.<br \/>\n3.<strong> Chromatin:<\/strong> Chromatin is the heredity material made-up of long fibres of DNA combined with proteins.<br \/>\n4. <strong>Centromere:<\/strong> A narrow constriction is seen in the chromosome at metaphase or anaphase is called primary constriction. The distinct area of light colour inside the primary constriction is called centromere.<br \/>\n5. <strong>Chromatids:<\/strong> Each metaphase chromosome consisi lied chromatids.<\/p>\n<p><strong>Question 7:<\/strong> Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the questions that follow:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-93862\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-11.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 11\" width=\"282\" height=\"214\" \/><br \/>\n(i) Is it a plant cell or an animal cell? Give a reason to support your answer.<br \/>\n(ii) Identify the stage shown.<br \/>\n(iii) Name the stage that follows the one shown here. How is that stage identified?<br \/>\n(iv) How will you differentiate between mitosis and meiosis on the basis of the chromosome number in the daughter cells?<br \/>\n<strong>Answer:<\/strong> (i) It is plant cell, because centrosome is absent and spindle apparatus not connected to it<br \/>\n(ii) Prophase.<br \/>\n(iii) <strong>Metaphase:<\/strong> In this stage the chromosome lie in one plane at equator and gets attached to a spindle fibre by its centromere.<br \/>\n(iv) <strong>Mitosis:<\/strong> Same diploid number of chromosomes are present in the daughter cell.<br \/>\n<strong>Meiosis:<\/strong> Haploid number of chromosomes are present in the daughter cells.<\/p>\n<p><strong>Question 8:<\/strong> The figure below shows a certain stage of mitosis:<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-93863\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-12.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 12\" width=\"320\" height=\"225\" srcset=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-12.png 320w, https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-12-300x211.png 300w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><br \/>\n(i) Name the stage,<br \/>\n(ii) Label tie parti-4<br \/>\n(iii) How many chromosomes are shown here?<br \/>\n<strong>Answer:<\/strong> (i) Metaphase<br \/>\n(ii) 1. Chromatid<br \/>\n2. Centromere<br \/>\n3. Centriol<br \/>\n4. Spindle fibre<\/p>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">Sketch and Label the Diagram<\/span><\/h3>\n<p><strong>Question 1:<\/strong> Give a labeled diagram to illustrate amitosis.<br \/>\n<strong>Answer:<\/strong><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-93864\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-13.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 13\" width=\"354\" height=\"405\" srcset=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-13.png 354w, https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-13-262x300.png 262w\" sizes=\"(max-width: 354px) 100vw, 354px\" \/><\/p>\n<p><strong>Question 2:<\/strong> Draw a labeled schematic representation of mitosis cell division.<br \/>\n<strong>Answer:<\/strong><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-93865\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-14.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 14\" width=\"677\" height=\"376\" srcset=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-14.png 677w, https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-14-300x167.png 300w, https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-14-630x350.png 630w\" sizes=\"(max-width: 677px) 100vw, 677px\" \/><\/p>\n<p><strong>Question 3:<\/strong> Draw a duplicate chromosome and label its part.<br \/>\n<strong>Answer:<\/strong><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-93866\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-15.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 15\" width=\"206\" height=\"266\" \/><\/p>\n<p><strong>Question 4:<\/strong> Draw a well labelled diagram to show the anaphase stage of mitosis in arplant cell having four chromosomes.<br \/>\n<strong>Answer:<\/strong><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-93867\" src=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-16.png\" alt=\"ICSE Solutions for Class 10 Biology - Cell Division 16\" width=\"304\" height=\"265\" srcset=\"https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-16.png 304w, https:\/\/cbselibrary.com\/wp-content\/uploads\/2020\/11\/ICSE-Solutions-for-Class-10-Biology-Cell-Division-16-300x262.png 300w\" sizes=\"(max-width: 304px) 100vw, 304px\" \/><\/p>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">Explain the Terms<\/span><\/h3>\n<p><strong>Question:<\/strong><br \/>\n1. Leptotene<br \/>\n2. Zygotene<br \/>\n3. Pachytene<br \/>\n4. Diplotene<br \/>\n5. Diakinesis<br \/>\n6. Cell division<br \/>\n7. Chromatids<br \/>\n8. Centromeres<br \/>\n9. Centrioles<br \/>\n10. Spindle<br \/>\n11. Cell Plate<br \/>\n12. Cleavage furrow<br \/>\n13. Chromosomes<br \/>\n14. Chromatin<br \/>\n<strong>Answer:<\/strong> 1. <strong>Leptotene:<\/strong> Th this step the chromosomes become visible as single threads.<br \/>\n2. <strong>Zygotene:<\/strong> Pairing of homologous chromosomes (synapsis) occur in this stage. Each pair is a bivalent.<br \/>\n3. <strong>Pachytene:<\/strong> The crossing-over begins at the end of this stage.<br \/>\n4. <strong>Diplotene:<\/strong> Crossing-over continues and two homologous chromosomes in each pair begin to separate. They are held together at chiasmata.<br \/>\n5. <strong>Diakinesis:<\/strong> In this stage nuclear membrane and nucleolus disappear. Spindle begins to be formed at the end of this stage.<br \/>\n6. <strong>Cell division:<\/strong> Process by which a cell divides into two new daughter cells.<br \/>\n7. <strong>Chromatids:<\/strong> Two identical parts of a chromosome called \u201csister\u201d chromatids.<br \/>\n8. <strong>Centromeres:<\/strong> Part of a chromosome. Located near the middle of the chromatids. (Some lie at the ends)<br \/>\n9. <strong>Centrioles:<\/strong> Two tiny structures located in the cytoplasm near the nuclear envelope (membrane that surrounds the nucleus).<br \/>\n10. <strong>Spindle:<\/strong> A fanlike micr\u00f2thbule structure that helps separate the chromosomes.<br \/>\n11. <strong>Cell plate:<\/strong> Structure that forms in plant cells when the cytoplasm divides during cytokinesis.<br \/>\n12. <strong>Cleavage furrow:<\/strong> Structure that forms in animal cells when the cytoplasm divides during cytokinesis.<br \/>\n13. <strong>Chromosomes:<\/strong> Made up of DNA. Carry genetic information.<br \/>\n14. <strong>Chromatin:<\/strong> Material in the nucleus that condenses during cell division to form chromosomes.<\/p>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">Name the Following<\/span><\/h3>\n<p><strong>Question:<\/strong><br \/>\n1. The process by which cell divides into two equal daughter cells.<br \/>\n2. The type of cell division present in unicellular organisms.<br \/>\n3. The two kinds of cell division found in living organisms.<br \/>\n4. Mitosis takes place in which cells.<br \/>\n5. Replacement of dead cells is accomplished by which process.<br \/>\n6. The kind of division normally seen at the tip of root and shoot system.<br \/>\n7. Microtubules forifTarbipolar spindle in which stage.<br \/>\n8. The structure responsible for initiating cell division in animal cells.<br \/>\n9. The part of the cell associated with heredity.<br \/>\n10. Process by which gametes are produced by. .<br \/>\n11. The process responsible for variation.<br \/>\n12. The kind of division takes place in the reproductive tissues.<br \/>\n13. The largest phase of a normal cell cycle.<br \/>\n14. The stage when chromosomes arrange at the equator.<br \/>\n15. Separation of sister chromatids takes place in which stage.<br \/>\n16. Stage in which the crossing-over takes place.<br \/>\n17. The point at which the explicated chromosomes are joined.<br \/>\n18. Name the stage during which nuclear membrane and nucleoide reappear.<br \/>\n19. &#8216;V&#8217; shaped chromosome having the centromere at the centre.<br \/>\n20. Nuclear envelope and nucleoli reappear in which stage.<br \/>\n21. Result of uncontrolled cell division.<br \/>\n<strong>Answer:<\/strong><br \/>\n1. Cell division<br \/>\n2. Amitosis<br \/>\n3. Mitosis, Meiosis<br \/>\n4. Somatic cells<br \/>\n5. Mitosis<br \/>\n6. Mitosis<br \/>\n7. Metaphase<br \/>\n8. Centrioles<br \/>\n9. Chromosome<br \/>\n10. Meiosis<br \/>\n11. Crossing-over<br \/>\n12. Meiosis<br \/>\n13. Prophase<br \/>\n14. Metaphase<br \/>\n15. Anaphase<br \/>\n16. pachytene<br \/>\n17. Centromere<br \/>\n18. Telophase<br \/>\n19. Metacentric<br \/>\n20. Telophase<br \/>\n21. Cancer<\/p>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">Give Technical Terms<\/span><\/h3>\n<p><strong>Question:<\/strong><br \/>\n1. The stage in mitosis when the nucleolus start disappearing.<br \/>\n2. The stage at which spindle fibres begin to be formed.<br \/>\n3. The shortest phase of mitosis.<br \/>\n4. The stage when sister chromosomes separate from their paired condition.<br \/>\n5. The period between two successive mitotic division.<br \/>\n6. Point at which two sister chromatids are held together.<br \/>\n7. The stage at which chromosomes occurs reach the opposite poles.<br \/>\n8. The process of cytoplasmic division.<br \/>\n9. Division of nucleus.<br \/>\n10. During cytokinesis when the cell plate begins in the centre and moves towards the wall.<br \/>\n11. The phase of the cell cycle during which the cell grows.<br \/>\n12. The phase of the cell cycle in which DNA replication takes place.<br \/>\n13. Division which brings about vegetative growth.<br \/>\n14. The largest phase of a normal cell cycle.<br \/>\n15. The stage at which progressive condensation and coiling of chromatin fibres.<br \/>\n16. The stage at which sydapsis in chromosomes to form bivalents.<br \/>\n17. The stage at which formation of chiasmata occurs. .<br \/>\n18. Crossing over occurs during thisjsubstage of meiosis.<br \/>\n19. The stage at meiosis at which there are two cells, each with sister chromatids aligned at the equator.<br \/>\n20. The phase usually skipped in meiosis.<br \/>\n21. The phase of meiosis at which homologous chromosomes are separated.<br \/>\n22. The process during which the meiosis occurs in human beings.<br \/>\n23. Period between Meiosis-I and Meiosis-II.<br \/>\n<strong>Answer:<\/strong><br \/>\n1. Prophase<br \/>\n2. Late prophase or early Metaphase<br \/>\n3. Anaphase<br \/>\n4. Anaphase<br \/>\n5. Interphase<br \/>\n6. Centromere<br \/>\n7. Anaphase<br \/>\n8. Cytokinesis<br \/>\n9. Karyokinesis<br \/>\n10. Centrifugal<br \/>\n11. G<sub>1<\/sub> phase<br \/>\n12. S phase<br \/>\n13. Mitosis<br \/>\n14. Interphase<br \/>\n15. Leptotene<br \/>\n16. Zygotene<br \/>\n17. Pachytene<br \/>\n18. Prophase I<br \/>\n19. Anaphase I<br \/>\n20. Telophase 1<br \/>\n21. Metaphase II<br \/>\n22. Gamete formation<br \/>\n23. Interkinesis<\/p>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">Fill in the Blanks<\/span><\/h3>\n<p><strong>Complete the following sentences with appropriate words :<\/strong><br \/>\n1. The type of cell division that occurs in apical meristem of plants is <span style=\"text-decoration: underline;\">Mitosis<\/span>.<br \/>\n2. <span style=\"text-decoration: underline;\">Karyokinesis<\/span> means splitting of nucleus.<br \/>\n3. The stage between Meiosis-I and Meiosis-II is called <span style=\"text-decoration: underline;\">Interkinesis<\/span>.<br \/>\n4. Colchicine arrests cell division at <span style=\"text-decoration: underline;\">Metaphase<\/span>.<br \/>\n5. <span style=\"text-decoration: underline;\">Centromere<\/span> is the point at which sister chromatids are held together.<br \/>\n6. The spindle fibres are made of <span style=\"text-decoration: underline;\">Microtubules<\/span>.<br \/>\n7. The pairing of homologous chromosomes is called <span style=\"text-decoration: underline;\">Synapsis<\/span>.<br \/>\n8. Chromosomes are <span style=\"text-decoration: underline;\">Hereditary<\/span> material.<br \/>\n9. Polytene chromosomes are found in <span style=\"text-decoration: underline;\">Salivary glands<\/span> of fly larvae.<\/p>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">True &amp; False<\/span><\/h3>\n<p><strong>Mention, if the following statements are True or False. If false rewrite the wrong statement in its correct form:<\/strong><br \/>\n1. Somatic cells of a multicellular organisms arise from a single cell by mitosis. <strong>(True)<\/strong><br \/>\n2. Mitosis results in four daughter cells. <strong>(False, meiosis results in four daughter cells)<\/strong><br \/>\n3. Mitosis keeps the chromosome number constant through the generations. <strong>(False, meiosis keeps the chromosome number constant through the generations.)<\/strong><br \/>\n4. Germ cells divide meiotically to produce gametes. <strong>(True)<\/strong><br \/>\n5. The alkaloid coichicine inhibits formation of mitotic spindle. <strong>(True)<\/strong><br \/>\n6. Asexual reproduction is accomplished through mitosis.<strong> (True)<\/strong><br \/>\n7. Chromosomes other than sex-chromosomes are autonomous. <strong>(True)<\/strong><br \/>\n8. Cytokinesis takes place through cleavage furrow in animal cells. <strong>(True)<\/strong><br \/>\n9. Chromosomes are arranged in the form of chromatids at the equator in prophase. <strong>(False, chromosomes are arranged in the form of chromatids at the equator in metaphase.)<\/strong><br \/>\n10. Chromosomes are the thickest and shortest in telophase. <strong>(False, chromosomes are thickest and shortest in anaphase.)<\/strong><br \/>\n11. Meiosis is also called heterotypic division. <strong>(True)<\/strong><br \/>\n12. Prophase of meiosis-I has five sub-stages. <strong>(True)<\/strong><br \/>\n13. Meiosis leads to recombination of characters. <strong>(True)<\/strong><\/p>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">State the Location<\/span><\/h3>\n<table style=\"height: 159px;\" border=\"2\" width=\"458\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"169\"><strong>Name<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"459\"><strong>Location<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"169\">Asters<\/td>\n<td style=\"text-align: center;\" width=\"459\">Around the centriole at each pole<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"169\">Cell plate<\/td>\n<td style=\"text-align: center;\" width=\"459\">In the centre of the cell.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"169\">Chromosomes<\/td>\n<td style=\"text-align: center;\" width=\"459\">In nucleus, mitochondria and chloroplast.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"169\">Polytene chromosome<\/td>\n<td style=\"text-align: center;\" width=\"459\">In salivary glands of fly Larur.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">State the Function<\/span><\/h3>\n<p><strong>Write the functional activity of the following structures:<\/strong><\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"145\"><strong>Name<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"482\"><strong>Function<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"145\">Chromosome<\/td>\n<td style=\"text-align: center;\" width=\"482\">Heredity, i.e., transmission of characters from parents to offsprings.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"145\">Spindle fibres<\/td>\n<td style=\"text-align: center;\" width=\"482\">Support chromosomes at the time of cell division.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"145\">Chiasmata<\/td>\n<td style=\"text-align: center;\" width=\"482\">Crossing-over, in which genes are transferred from one part to another.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"145\">Colchicine.<\/td>\n<td style=\"text-align: center;\" width=\"482\">It inhibits the formation of mitotic spindle.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">Choose the Odd One Out<\/span><\/h3>\n<p>1. Amitosis, Mitosis, Meiosis, Cell cycle. <strong>(Cell cycle)<\/strong><br \/>\n2. Prophase, Metaphase, Anaphase, Telophase, Meiosis. <strong>(Meiosis)<\/strong><br \/>\n3. Leptotene, Zygotene, Pachytene, Diplotene, Telophase. <strong>(Telophase)<\/strong><\/p>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">Multiple Choice Questions<\/span><\/h3>\n<p>1. Cytokinesis is\u00a0the division of:<br \/>\n(a) Cell <strong>(b) Cytoplasm<\/strong><br \/>\n(c) Cell wall (d) Nucleus<\/p>\n<p>2. Karyokinesis is the division of:<br \/>\n(a) Cytoplasm <strong>(b) Nucleus<\/strong><br \/>\n(c) Celiwall (d) Pollen grains<\/p>\n<p>3. Cell division occurring in somatic cells is:<br \/>\n<strong>(a) Mitosis<\/strong> (b) Meiosis<br \/>\n(c) Diplotene (d) Diakinesis<\/p>\n<p>4. In meiotic cell division four daughter cells are produced by two successive divisions in which:<br \/>\n(a) First division is equational and second is reductional<br \/>\n<strong>(b) First division is reductional and second is equational<\/strong><br \/>\n(c) Both divisions are reductional<br \/>\n(d) Both divisions are equational.<\/p>\n<p>5. Duplication of DNA occurs in:<br \/>\n(a) G<sub>1<\/sub>-phase (b) G<sub>2<\/sub>-phase<br \/>\n<strong>(c) S-phase<\/strong> (d) M-phase<\/p>\n<p>6. The nuclear membrane disappears in:<br \/>\n<strong>(a) Prophase<\/strong> (b) Anaphase<br \/>\n(c) Zygotene (d) Pachytene<\/p>\n<p>7. How many chromosomes are found in a cell of human?<br \/>\n(a) 20 Pairs <strong>(b) 46<\/strong><br \/>\n(c) 23 (d) 46 Pairs<\/p>\n<p>8. The nuclear membrane and nucleolus become indistinguishable during:<br \/>\n(a) Telophase <strong>(b) Metaphase<\/strong><br \/>\n(c) Prophase (d) Interphase<\/p>\n<p>9. The disappearance of spindle and uncoiling of chromosomes takes place in:<br \/>\n(a) Anaphase <strong>(b) Telophase<\/strong><br \/>\n(c) Pachytene (d) Meiosis<\/p>\n<p>10. The regions where crossing-over takes place are called:<br \/>\n<strong>(a) Chiasmata<\/strong> (b) Cell plate<br \/>\n(c) Spindle fibres (d) Chromosomes<\/p>\n<p>11. Duplicated chromosomes are joined at a point termed:<br \/>\n(a) Centrosome <strong>(b) Centromere<\/strong><br \/>\n(c) Centriole (d) Chromatid<\/p>\n<p>12. The \u0153ntromeredivides into two in:<br \/>\n(a) Prophase <strong>(b) Metaphase<\/strong><br \/>\n(c) Anaphase (d) Telophase<\/p>\n<p>13. After mitotic cell division, a female human cell will have:<br \/>\n<strong>(a) yy + xx chromosome<\/strong> (b) yy + xy chromosome<br \/>\n(c) 22 + x chromosome (d) 22 + y chromosome<\/p>\n<p>14. The period between two successive mitotic divisions is:<br \/>\n(a) Diakinesis<strong> (b) Interphase<\/strong><br \/>\n(c) Anaphase (d) Mitosis<\/p>\n<p>15. The term meiosis was coined by:<br \/>\n<strong>(a) Farmer and Moore<\/strong> (b) Winiwarter<br \/>\n(c) Flemming (d) Strasburger<\/p>\n<p>16. Meiosis is also known as:<br \/>\n(a) Equational division <strong>(b) Reductional division<\/strong><br \/>\n(c) Direct cell division (d) All of the above<\/p>\n<p>17. Meiosis occurs in:<br \/>\n(a) Vegetative cells <strong>(b) Reproductive cells<\/strong><br \/>\n(c) Meristematic cells (d) None of the above<\/p>\n<p>18. The process of meiosis takes place to produce:<br \/>\n(a) Cells of the body (b) Cells of the brain<br \/>\n<strong>(c) Sperms and ova<\/strong> (d) Testis and ovary<\/p>\n<p>19. Leptotene, Zygotene and Diplotene phases are found in:<br \/>\n(a) Mitosis <strong>(b) Prophase of Meiosis-I<\/strong><br \/>\n(c) Interphase (d) Prophase of Meiosis-U<\/p>\n<h3 style=\"text-align: center;\"><span style=\"color: #0000ff;\">Match the Column<\/span><\/h3>\n<p><strong>Column &#8216;II&#8217; is a list of items related to ideas in Column &#8216;I&#8217;. Match the term in Column &#8216;II&#8217; with the suitable idea given in Column &#8216;I&#8217;.<\/strong><\/p>\n<table style=\"height: 257px;\" border=\"2\" width=\"554\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"319\"><strong>Column I<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"319\"><strong>Column II<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"319\">(i) Anaphase<\/td>\n<td style=\"text-align: center;\" width=\"319\">(a) Chromosomes become arranged in a horizontal plane at the equator.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"319\">(ii) Prophase<\/td>\n<td style=\"text-align: center;\" width=\"319\">(b) Daughter chromosomes move to opposite poles of the spindle.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"319\">(iii) Telophase<\/td>\n<td style=\"text-align: center;\" width=\"319\">(c) Chromosomes become visible as fine, long threads.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"319\">(iv) Metaphase<\/td>\n<td style=\"text-align: center;\" width=\"319\">(d) Chromosomes lose their distinctiveness and gradually become transformed into chromatin network.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Answer:\u00a0<\/strong>(i) (b) \u00a0 (ii) (c) \u00a0 (iii) \u00a0(d) \u00a0 (iv) (a)<\/p>\n<p><strong>For More Resources<\/strong><\/p>\n<div class=\"one-half first\">\n<ul>\n<li><a title=\"ICSE Solutions for Class 10 Physics\" href=\"https:\/\/cbselibrary.com\/icse-solutions-class-10-physics\/\">ICSE Solutions Physics<\/a><\/li>\n<li><a title=\"ICSE Solutions for Class 10 Chemistry\" href=\"https:\/\/cbselibrary.com\/icse-solutions-class-10-chemistry\/\">ICSE Solutions Chemistry<\/a><\/li>\n<li><a title=\"ICSE Solutions for Class 10 Biology\" href=\"https:\/\/cbselibrary.com\/icse-solutions-class-10-biology\/\">ICSE Solutions Biology<\/a><\/li>\n<\/ul>\n<\/div>\n<div class=\"one-half\">\n<ul>\n<li><a title=\"ICSE Solutions for Class 10 Mathematics\" href=\"https:\/\/cbselibrary.com\/icse-solutions-class-10-mathematics\/\">ICSE Solutions Mathematics<\/a><\/li>\n<li><a title=\"ICSE Solutions for Class 10 History and Civics\" href=\"https:\/\/cbselibrary.com\/icse-solutions-class-10-history-civics\/\">ICSE Solutions History and Civics<\/a><\/li>\n<li><a title=\"ICSE Solutions for Class 10 Geography\" href=\"https:\/\/cbselibrary.com\/icse-solutions-class-10-geography\/\">ICSE Solutions Geography<\/a><\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>ICSE Solutions for Class 10 Biology &#8211; Cell Division ICSE SolutionsSelina ICSE Solutions APlusTopper.com provides ICSE Solutions for Class 10 Biology Chapter 1 Cell Division for ICSE Board Examinations. We provide step by step Solutions for ICSE Biology Class 10 Solutions Pdf.\u00a0You can download the Class 10 Biology ICSE Textbook Solutions with Free PDF download &#8230; <a title=\"ICSE Solutions for Class 10 Biology &#8211; Cell Division\" class=\"read-more\" href=\"https:\/\/cbselibrary.com\/cell-division-icse-solutions-class-10-biology\/\" aria-label=\"More on ICSE Solutions for Class 10 Biology &#8211; Cell Division\">Read more<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[3034],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v17.8 (Yoast SEO v18.4.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ICSE Solutions for Class 10 Biology - Cell Division - CBSE Library<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cbselibrary.com\/cell-division-icse-solutions-class-10-biology\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ICSE Solutions for Class 10 Biology - Cell Division\" \/>\n<meta property=\"og:description\" content=\"ICSE Solutions for Class 10 Biology &#8211; Cell Division ICSE SolutionsSelina ICSE Solutions APlusTopper.com provides ICSE Solutions for Class 10 Biology Chapter 1 Cell Division for ICSE Board Examinations. 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