Measurements of the amount of DNA per nucleus were taken on a large number of cells from a growing fungus. The measured DNA levels ranged from 3 to 6 picograms per nucleus. In which stage of the cell cycle did the nucleus contain 6 picograms of DNA?
A) G1
B) S
C) G2
D) G0

Question

Quizplus · Accepted Answer

During the G2 phase, the DNA content is doubled compared to the G1 phase, as DNA replication occurs during the S phase. Therefore, a nucleus with 6 picograms of DNA is in the G2 phase.

Measurements of the Amount of DNA Per Nucleus Were Taken