Multiple Choice
Which of the following proteins are responsible for unwinding the DNA double helix for replication?
16. Cell Division
DNA Replication
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DNA replication occurs during which phase of the eukaryotic cell cycle?
A
S phase
B
G1 phase
C
G2 phase
D
M phase
Verified step by step guidance1
Understand the eukaryotic cell cycle, which consists of four main phases: G1 (Gap 1), S (Synthesis), G2 (Gap 2), and M (Mitosis).
Recall that DNA replication is the process of copying the DNA molecule to ensure that each daughter cell receives an identical set of genetic material.
Identify the phase during which DNA synthesis occurs. This is the S phase, where the cell actively replicates its DNA.
Differentiate the other phases: G1 is a growth phase before DNA replication, G2 is a preparation phase for mitosis, and M is the phase where cell division occurs.
Conclude that DNA replication specifically occurs during the S phase of the eukaryotic cell cycle.
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