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Select the correct answer.
What happens to a cell in the S phase?
O A.
The nuclear envelope develops around each set of chromosomes.
O B.
DNA replicates to form two copies of chromosomes.
O c.
Sister chromatids separate out from the chromosomes.



Answer :

kyala37

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During the S phase of the cell cycle, DNA replicates to form two identical copies of each chromosome, called sister chromatids. The sister chromatids are attached at the centromere region. The S phase occurs during interphase, before mitosis or meiosis.

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