Question

You have studied
mitosis in onion root
tip cells. It has 16
chromosomes
each cell. Can you
tell how many
chromosomes will
the cell have at G
phase, after S phase,
and after M phase?
Also, what will be the
DNA content of the
cells at G1 after s
and at G2. if the
content after M
phase is 2C?​

Answer 1

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After the study of the mitosis in the onion root tips cells, it is found that there is 16 chromosomes in each cell.

EXPLANATION:

So for, the G1 phase the chromosomes have 16 and also for the S phase there should be 16 chromosomes and for the M phase also there will be 16 chromosome.

So the DNA content of the cells at the G1 phase will be 2c and after the S will be 4c and at the G2 phase it will be 4C.