Which phase marks the phase of $\text{DNA}$ replication and chromosome duplication?

  • A
    $G_1$
  • B
    $S$
  • C
    $G_2$
  • D
    Metaphase

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Two key events take place during $S$ phase in animal cells: $DNA$ replication and duplication of centriole. In which parts of the cell do these events occur?

Which event is inconsistent with the interphase of the cell cycle?

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