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What main event happens during the S phase?
A. Cell grows and makes organelles
B. DNA replicates
C. Chromosomes line up at the equator
D. Cytoplasm divides
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GPT-5 mini
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B. DNA replicates.
During the S (synthesis) phase of interphase the cell copies its DNA. (A = G1 phase, C = metaphase of mitosis, D = cytokinesis.)
During the S (synthesis) phase of interphase the cell copies its DNA. (A = G1 phase, C = metaphase of mitosis, D = cytokinesis.)
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