NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice
The G 2 -phase of the cell cycle is characterized by the presence of
Options
- Athe number of chromosomes increases from n to 2n or 2n to 4n
- Bsingle chromatids
- Cformation of tubulin
- Ddouble amount of DNA (in chromosomes) than in S-phase.
Correct answer
C. formation of tubulin
Step-by-step solution
G 2 is the gap phase, which is the third sub-phase of the interphase in the cell cycle. The G 1 is the growth phase followed by the Synthesis phase and then the Gap phase where the cell is preparing itself for division and protein synthesis takes place after which the cell is ready to undergo mitosis. It is in the gap phase that the microtubules are assembled and later used for the mobilization of the chromosomes in the M phase.