How does a nucleus in G2 differ from a nucleus in G1?
A) The G2 nucleus has double the amount of DNA as the G1 nucleus.
B) DNA synthesis occurs only in the G1 phase.
C) Inactive cells are arrested only in the G2 phase.
D) During G2, the cell prepares for S phase.
E) All of the above

Question

Quizplus · Accepted Answer

During the S phase of interphase, DNA replication occurs resulting in the doubling of the amount of DNA in the cell. Therefore, a nucleus in G2 has double the amount of DNA as a nucleus in G1. Option B is incorrect as DNA synthesis occurs only during the S phase, not G1. Option C is incorrect as inactive cells can be arrested in any phase of the cell cycle. Option D is partially correct as the cell does prepare for the upcoming M phase during G2, but it does not specify that it is specifically for the S phase.

How Does a Nucleus in G2 Differ from a Nucleus