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The fruitfly has 8 chromosomes (2n) in e...

The fruitfly 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 chromosom,es after S phase?

A

16

B

4

C

32

D

8

Text Solution

Verified by Experts

The correct Answer is:
D
In S phase there is duplication of DNA. So amount of DNA increases but not the chromosome number.
During mitotic cell cycle if the chromosome number in `G_1` phase is 8, it remains same till Metaphase. Hence, even after S phase same chromosome number 8 is maintained in the cell of fruit fly.
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