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Q.
In a mouse, duplication of centrioles in cytoplasm is completed in
NTA AbhyasNTA Abhyas 2020Cell Cycle and Cell Division
Solution:
The cell cycle is divided into two phases - Interphase and Mitosis phase or the M phase. The interphase is further divide into 3 phases - Gap 1 or G1 phase, Synthesis phase or S phase and Gap 2 or $G_{2}$ phase. $G_{1}$ phase is the interval between mitosis and initiation of DNA replication during which the cell is metabolically active and grows but does not replicate. The DNA replication begins in the S phase and the centrioles duplicate in the cytoplasm. In the $G_{2}$ phase, proteins are synthesised in preparation for mitosis while cell growth continues.