Question

A biochemist measured the amount of DNA in cells growing in the laboratory and found the quantity of DNA in a cell doubled. When this quantity increased?

A. Between the G1 and G2 phase of the cell cycle
B. Between prophase and metaphase of mitosis
C. Between anaphase and telophase of mitosis
D. During the M phase of the cell cycle

Answer 1

The quantity of DNA in a cell doubles during the S phase of interphase.

Step-by-step explanation:

The quantity of DNA in a cell doubles during the S phase of interphase. During interphase, which is the longest phase of the cell cycle, the cell undergoes three distinct periods: G1, S, and G2. The S phase is when the cell replicates its DNA, resulting in the doubling of the amount of DNA in the cell.