During Which Phase of the Cell Cycle Do Most Organelles

Question

During which phase of the cell cycle do most organelles duplicate?
A) prophase of mitosis
B) telophase of mitosis
C) the S phase of interphase
D) the G1 phase of interphase

Accepted Answer

During the G1 phase of interphase, the cell grows and most organelles duplicate in preparation for DNA replication and cell division.