Multiple Choice
What is the term for the process by which a cell duplicates its DNA before cell division?
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16. Cell Division
DNA Replication
Multiple Choice
During which phase of the eukaryotic cell cycle is DNA replicated?
A
S phase (synthesis phase) of interphase
B
M phase (mitosis)
C
G1 phase of interphase
D
G2 phase of interphase
Verified step by step guidance1
Understand the structure of the eukaryotic cell cycle, which consists of interphase and M phase (mitosis). Interphase itself is divided into G1, S, and G2 phases.
Recall that the primary purpose of the S phase (synthesis phase) is to replicate the cell's DNA, ensuring that each daughter cell receives an identical set of chromosomes.
Recognize that during G1 phase, the cell grows and performs normal functions but does not replicate DNA.
Know that G2 phase involves preparation for mitosis, including the synthesis of proteins and organelles, but DNA replication has already been completed by this point.
Conclude that DNA replication specifically occurs during the S phase of interphase, making it the correct answer.
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