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Mention whether the following statements are True or False. Give reason in support of your answer. [5 MARKS] (a) As you grow from childhood to adulthood, your skin cells divide only to replace such cells that are lost from the surface. (b) The unfertilized human egg has half the number of chromosomes of the body cells. (c) Nuclear membrane in a mitotically dividing cell remains intact up to the metaphase and disappears only in telophase. (d) Mitotic cell division can be a mode of reproduction. (e) Crossing-over between chromatids can occur only between homologous chromosomes. |
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Answer» Mention whether the following statements are True or False. Give reason in support of your answer. [5 MARKS] (a) As you grow from childhood to adulthood, your skin cells divide only to replace such cells that are lost from the surface. (b) The unfertilized human egg has half the number of chromosomes of the body cells. (c) Nuclear membrane in a mitotically dividing cell remains intact up to the metaphase and disappears only in telophase. (d) Mitotic cell division can be a mode of reproduction. (e) Crossing-over between chromatids can occur only between homologous chromosomes. |
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