SAT Subject Biology Practice Question 5: Answer and Explanation

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Question: 5

5. What is the correct sequence of these events in the cell cycle?

I. Nuclear membrane dissolves.

II. Cell size increases.

III. Two daughter cells form.

IV. DNA replicates.

A. I, IV, II, III
B. I, IV, III, II
C. II, I, IV, III
D. II, IV, I, III
E. IV, II, III, I

Correct Answer: D

Explanation:

In the G1 and G2 phases of the cell cycle, a newly formed cell grows. It replicates its DNA in the S phase. In mitosis, the nuclear membrane dissolves as the nucleus is replicated. After mitosis, cytokinesis forms two identical daughter cells.

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