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Multiple Choice
Duplication of the chromosomes to produce sister chromatids occurs during which phase of the cell cycle?
A
G1 phase
B
G2 phase
C
S phase
D
M phase
Verified step by step guidance
1
Understand the phases of the cell cycle: G1 (first gap), S (synthesis), G2 (second gap), and M (mitosis).
Recall that chromosome duplication involves the replication of DNA to form sister chromatids.
Identify that DNA replication specifically occurs during the S phase of the cell cycle.
Note that G1 and G2 phases are gap phases where the cell grows and prepares for DNA replication and mitosis, respectively, but do not involve chromosome duplication.
Recognize that the M phase is when mitosis and cell division occur, not DNA replication.