CELL DIVISION
MEIOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Chromosomes have on chromatid at the end of both meiosis I and meiosis II.
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Chromosomes have two chromatids at the end of both meiosis I and meiosis II.
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Chromosomes have on chromatid at the end of meiosis I and two chromatids at the end of meiosis II.
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Chromosomes have two chromatids at the end of meiosis I and one chromatid at the end of meiosis II.
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Detailed explanation-1: -The cells that enter meiosis II are the ones made in meiosis I. These cells are haploid-have just one chromosome from each homologue pair-but their chromosomes still consist of two sister chromatids . In meiosis II, the sister chromatids separate, making haploid cells with non-duplicated chromosomes.
Detailed explanation-2: -However, Meiosis I begins with one diploid parent cell and ends with two haploid daughter cells, halving the number of chromosomes in each cell. Meiosis II starts with two haploid parent cells and ends with four haploid daughter cells, maintaining the number of chromosomes in each cell.
Detailed explanation-3: -There are now four daughter cells-two from each of the two cells that entered meiosis II-and each daughter cell has half the normal number of chromosomes (Figure 7).
Detailed explanation-4: -In meiosis I, homologous chromosomes separate, while in meiosis II, sister chromatids separate. Meiosis II produces 4 haploid daughter cells, whereas Meiosis I produces 2 diploid daughter cells.
Detailed explanation-5: -The parent cell remains diploid in nature( 46 chromosomes in each cell) after meiosis I. After meiosis II, when each parent cell gets divided into two gametes each gamete cell contains 23 chromosomes. In this phase, each gamete remains haploid in nature.