What happens during the $S$ phase of the cell cycle?

  • A
    The amount of $DNA$ in each cell doubles.
  • B
    The amount of $DNA$ in each cell remains the same.
  • C
    The number of chromosomes increases.
  • D
    The amount of $DNA$ in each cell is halved.

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. . . . . . phase synthesizes enzymes required during $S$ phase.

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Which of the following is an incorrect pair?

Which phase of the cell cycle is characterized by $DNA$ replication,synthesis of histones,and the formation of new nucleosomes?

During the cell cycle,in which phase does $DNA$ replication occur?

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