The fruit fly has 8 chromosomes (2n) in each cell. During interphase of Mitosis if the number of chromosomes at G1 phase is 8, what would be the number of chromosomes after S phase ? (1) 4 (2) 32 (3) 8 (4) 16
Option 3) In S phase there is duplication of DNA. Amount of DNA increases but not the chromosome number. So, if the number of chromosomes at G1 phase is 8 in fruit fly then the number of chromosomes will be same in S phase that is 8 only.
