AP BIOLOGY

Detailed explanation-1: -If the cells have 12 chromosomes during interphase, the number of chromosomes will be retained as 12 in each of the daughter cells even after the completion of mitosis. Q.

Detailed explanation-2: -There are a total of 46 chromosomes in metaphase I, each comprised of two sister chromatids. There are 23 homologous pairs, each containing two complete chromosomes. During telophase II, the cell is in a haploid state.

Detailed explanation-3: -The number of chromosomes in the G2 phase will be same as 12 chromosomes and the number of chromatids will be 24.

Detailed explanation-4: -So if a cell has 12 chromosomes at the end of meiosis I which is reduction division, it means that the parent cell would have had 24 chromosomes in prophase I. At the end of meiosis II (which is similar to mitosis and hence, equational division occurs) it would have 12 chromosomes.

Detailed explanation-5: -The end result is two daughter cells, each containing 46 chromosomes (23 pairs) and 46 chromatids. These two cells then split a second time under meiosis II, creating four daughter cells which each contain a complete set of DNA which is not presented in chromosome pairs, but as a single chromosome.