Use the following information to answer the questions below.
Nucleotides can be radiolabeled before they are incorporated into newly forming DNA and can therefore be assayed to track their incorporation. In a set of experiments, a student-faculty research team used labeled T nucleotides and introduced these into the culture of dividing human cells at specific times.
-A particular cell has half as much DNA as some other cells in a mitotically active tissue. The cell in question is most likely in
A) G1.
B) G2.
C) prophase.
D) metaphase.
E) anaphase.

Question

Quizplus · Accepted Answer

The fact that the cell has only half as much DNA as some other cells in a mitotically active tissue suggests that it is in the G1 phase of the cell cycle, before DNA replication has occurred. During G2, prophase, metaphase, and anaphase, the cell would have already replicated its DNA and therefore would have a full complement of DNA.

Use the Following Information to Answer the Questions Below