The fruit fly has 8 chromosomes (2n) in each cell. During interphase of Mitosis if the number of chromosomes at phase is 8, what would be the number of chromosomes after S phase?
8
16
4
32
In S phase there is duplication of DNA. So amount of DNA increases but not the chromosome number. So, if the number of chromosomes at phase is 8 in fruit fly then the number of chromosomes will be same in S phase that is 8 only.
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