somatic cells of chimpanzees contain 48 chromosomes How many

Solution

a) Interphase is when the DNA is doubled. Hence during anaphase, there will be 48 chromosomes, but each chromosome will have 2 sister chromatids. So 96 chromatids in anaphase of mitosis. b) Similarly, in Anaphase I, there will be 48 chromosome, but 96 sister chromatids. (The difference here is that each cell will get 24 chromosomes instead of 48 chromatids as in (a)) c) In Anaphase II, each cell will have 48 chromatids (which eventually will lead to two cells with 24 each, aka haploid cells). d) G1: The chromosomes are coiled, and there are no defined chromatids in the cell. e) G2: The DNA has doubled, so 96 chromatids. f) Just prior to meiosis I, the DNA has doubled and there are 96 sister chromatids. g) Prophase of Meiosis I, the DNA has doubled and there are 96 sister chromatids.