Scelta multipla
Which of the following steps must occur before Meiosis I in germ cells?
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12. Meiosis
Introduction to Meiosis
Scelta multipla
In a diploid cell containing 10 chromosomes, meiosis results in the formation of daughter cells containing __________ chromosomes.
A
0
B
10
C
20
D
40
E
5
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Understand that meiosis is a type of cell division that reduces the chromosome number by half, resulting in four haploid daughter cells from one diploid parent cell.
Recognize that a diploid cell contains two sets of chromosomes, one from each parent. In this problem, the diploid cell has 10 chromosomes in total.
During meiosis, the diploid cell undergoes two rounds of division: meiosis I and meiosis II. The first division (meiosis I) separates homologous chromosomes, and the second division (meiosis II) separates sister chromatids.
After meiosis I, the chromosome number is halved, resulting in two cells, each with half the number of chromosomes. In this case, each cell will have 5 chromosomes.
Meiosis II does not change the chromosome number; it only separates the sister chromatids. Therefore, each of the four resulting daughter cells will have 5 chromosomes, which is half of the original diploid number.
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