Multiple Choice
Which mechanism helps prevent errors during DNA replication?
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8. DNA Replication
Overview of DNA Replication
Multiple Choice
During which phase of the eukaryotic cell cycle is DNA replicated?
A
S phase (synthesis phase) of interphase
B
G1 phase of interphase
C
M phase (mitosis)
D
G2 phase of interphase
Verified step by step guidance1
Understand the eukaryotic cell cycle phases: G1 phase (cell growth), S phase (DNA synthesis), G2 phase (preparation for mitosis), and M phase (mitosis, cell division).
Recall that DNA replication is the process of copying the entire genome to ensure each daughter cell receives a complete set of chromosomes.
Identify that DNA replication occurs specifically during the S phase (synthesis phase) of interphase, where the cell duplicates its DNA.
Note that G1 phase involves cell growth and normal functions, but no DNA replication occurs here.
Recognize that G2 phase is for preparation and checking for DNA damage after replication, and M phase is when the cell divides, so DNA replication does not happen in these phases.
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