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The cell cycle includes four phases-- G1, S1, G2, and M. What occurs during the S phase?

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Answer: B) cells increase in size and synthesize new proteins and organelles

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User Juanse Cora
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Answer:

In S phase, the cell synthesizes a complete copy of the DNA in its nucleus. It also duplicates a microtubule-organizing structure called the centrosome.

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User Spencer Moran
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