16
practice testMultiple Choice

Practice Test

Question 16 • Biology

DNA replication occurs during which phase of the eukaryotic cell cycle?

Answer
A
G1 phase
B
S phase
C
M phase
D
G2 phase

Explanation

DNA is copied during the S phase, where “S” stands for synthesis. This duplication ensures that each daughter cell can receive a complete set of DNA during cell division. G1 and G2 are growth and preparation phases, while M phase is when the cell divides.

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