NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice
At the end of the G 2 phase, the number of chromosomes and the amount of D N A in a diploid cell, respectively, is
Options
- An and 2C
- B2n and C
- Cn and 4C
- D2n and 4C
Correct answer
D. 2n and 4C
Step-by-step solution
If a cell at G 1 phase has 2 n chromosome and 2 C D N A, then during S p h a s e, D N A replication occurs but chromosome number remains unchanged. As a result, chromosome number remains 2 n but the quantity of D N A becomes 4 C .