Question

During S phase, how does it happen that the content of DNA doubles but the number of chromosomes remains the same?
And even after mitosis, how do both the daughter cells have the same number of chromosomes as the parent cell?​

Answer 1

Answer:

During S phase , the DNA replication occurs. So , as the result , the DNA content doubles and the chromosomes remain the same.

After mitosis , both the daughter cells have the same number of chromosomes as the parent cell because the mother cell divides into two equal cells. Mitosis being an equational division , the daughter cells have the same amount of chromosomes and every cell organelles.