8
QuizMultiple Choice

Cell Cycle

Question 8 • IL-Science 7 A

Fred wants to summarize mitosis in the cell cycle. Which statement describes mitosis?

Answer
A
Mitosis includes several steps that occur after the cytoplasm is divided but before the DNA has been copied.
B
Mitosis includes several steps that occur after the DNA has been copied but before the cytoplasm is divided.
C
Mitosis is the step in which the cytoplasm is divided.
D
Mitosis is the step in which the DNA is copied.

Explanation

Before mitosis, the cell copies its DNA during interphase. Mitosis is the series of steps in which the copied chromosomes are separated into two nuclei; afterward, the cytoplasm divides during cytokinesis. Therefore, mitosis occurs after DNA has been copied but before the cytoplasm is divided, as choice B states.

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