NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice
In a mouse, duplication of centrioles in cytoplasm is completed in
Options
- AS-Phase
- BG 2 Phase
- CG 1 Phase
- Dboth B and C
Correct answer
A. S-Phase
Step-by-step 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 mitos