Multiple Choice
During the S phase of the eukaryotic cell cycle, what is the primary cellular event that occurs?
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16. Cell Division
DNA Replication
Multiple Choice
During which stage of the eukaryotic cell cycle is DNA replicated?
A
G1 phase of interphase
B
M phase (mitosis)
C
S phase of interphase
D
G2 phase of interphase
Verified step by step guidance1
Understand the eukaryotic cell cycle phases: G1 phase, S phase, G2 phase (all part of interphase), and M phase (mitosis).
Recall that the G1 phase is primarily for cell growth and preparation for DNA replication, but DNA synthesis does not occur here.
Identify that the S phase (Synthesis phase) is when the cell actively replicates its DNA, doubling the genetic material in preparation for cell division.
Note that the G2 phase is for further growth and preparation for mitosis, but DNA replication is already complete by this stage.
Recognize that the M phase involves mitosis, where the replicated chromosomes are separated into two daughter cells, not DNA replication.
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