Multiple Choice
During the cell cycle leading up to mitosis, in which phase is DNA replicated?
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16. Cell Division
DNA Replication
Multiple Choice
During which stage of the cell cycle is DNA copied (replicated) prior to cell division?
A
M phase (mitosis)
B
S phase of interphase
C
G2 phase of interphase
D
G1 phase of interphase
Verified step by step guidance1
Understand that the cell cycle consists of several stages: G1 phase, S phase, G2 phase (all part of interphase), and M phase (mitosis).
Recall that DNA replication is the process of copying the cell's genetic material to ensure each daughter cell receives an identical set of chromosomes.
Identify that DNA replication occurs during the S phase (Synthesis phase) of interphase, where the cell synthesizes a complete copy of its DNA.
Note that G1 phase is primarily for cell growth and preparation for DNA synthesis, while G2 phase is for further growth and preparation for mitosis.
Recognize that M phase is when the cell actually divides, so DNA replication must be completed before this phase begins.
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