3
QuizMultiple Choice

Unit Test — Unit test

Question 3 • Biology_A_IC

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

Answer
S
S phase
G
G1 phase
G
G2 phase
M
M phase

Explanation

DNA replication occurs during the S phase, where “S” stands for synthesis. In this part of interphase, the cell copies its DNA so each daughter cell can receive a complete set of chromosomes. The G1 and G2 phases are mainly for growth and preparation, while M phase is when the cell divides.

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