Multiple Choice
During which phase of the cell cycle is DNA replicated?
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16. Cell Division
DNA Replication
Multiple Choice
During which phase of the eukaryotic cell cycle is DNA replicated?
A
G2 phase of interphase
B
M phase (mitosis)
C
S phase (synthesis phase) of interphase
D
G1 phase of interphase
Verified step by step guidance1
Understand the phases of the eukaryotic cell cycle: G1 phase (first gap), S phase (synthesis), G2 phase (second gap), and M phase (mitosis).
Recall that DNA replication is the process of copying the entire genome to prepare for cell division.
Identify that DNA replication occurs specifically 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 preparation for mitosis, and M phase is when the cell actually divides.
Conclude that the correct phase for DNA replication is the S phase of interphase.
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