Which of these processes occurs during a cell's first gap (G₁)phase? A) DNA is semiconservatively replicated. B) The nuclear envelope breaks down. C) The cell synthesizes the enzymes that control mitosis. D) The cell synthesizes proteins and grows. E) The chromatin condenses into visible chromosomes.

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During the first gap (G1) phase, the cell synthesizes proteins, RNA, and membrane components and grows in size in preparation for DNA replication. This phase is important for monitoring the cell's external and internal environment and ensuring that it has the necessary resources to proceed with the cell cycle. It is during G1 that the cell also makes the decision to enter the S phase and initiate DNA replication.

Which of These Processes Occurs During a Cell's First Gap