CELL STRUCTURES AND FUNCTION
CELL DIVISION
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Question
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68
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34
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136
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30
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Detailed explanation-1: -At the end of meiosis II, each cell (i.e., gamete) would have half the original number of chromosomes, that is, 15 chromosomes.
Detailed explanation-2: -Chromosomes get divided in each cell during meiosis. 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.
Detailed explanation-3: -Thus, mature sperm contains 23 chromosomes. After fusing with the egg (haploid cell), the sperm (haploid cell) forms zygote which is diploid.
Detailed explanation-4: -During meiosis II, each cell containing 46 chromatids yields two cells, each with 23 chromosomes. Originally, there were two cells that underwent meiosis II; therefore, the result of meiosis II is four cells, each with 23 chromosomes.
Detailed explanation-5: -Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids. The daughter cells now move in to the third and final phase of meiosis: meiosis II.