NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice
During the synthesis phase, if the initial amount of DNA in the cell is 15 ng, then after the synthesis phase the amount of DNA in the cell will be ______.
Options
- A15 ng
- B30 ng
- C45 ng
- D60 ng
Correct answer
B. 30 ng
Step-by-step solution
During the S-phase of the cell cycle, DNA replication takes place and the quantity of DNA becomes double than the initial amount. If the initial amount of DNA is 15 ng then it increases to 30 ng during S-phase when DNA replication occurs.