Question

In a cell, the number of chromosomes is the
same, but the amount of DNA content has
changed from 2C to 4C. In which stage of the
cell cycle, this process could have happened?
G1 phase
S phase
G2 phase
Go phase​

Answer 1

Answer:

S or synthesis phase marks the period during which DNA synthesis or replication takes place. During this time the amount of DNA per cell doubles. If the initial amount of DNA is denoted as 2C then it increases to 4C.