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Which of the following must happen before the cell can go through mitosis? A. The cytoplasm must divide. B. The cell must copy its DNA. C. The spindle fibers must break down. D. The sister chromatids must separate.

User Juanetta
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2 Answers

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B, because this occur before the others. 
User Fleurette
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The answer is B.The cell must copy its own DNA 
User Royskatt
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