NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice
Which of the following is not true about the S phase?
Options
- ADNA and histones are synthesized
- BAmount of DNA per cell become half
- CEven after S phase chromosome number become double
- DAll are true
Correct answer
A. DNA and histones are synthesized
Step-by-step solution
S-phase (synthesis phase) is the part of the cell cycle in which DNA is replicated, occurring between the G1 phase and the G2 phase. It is characterized by: DNA and histones are synthesized and DNA content gets doubled. DNA replicates in a semi-conservative manner. The amount of DNA per cell becomes double even after S phase chromosome number remains the same.