Q. How many chromosomes will the cell the cell have at $G_{1}$, after S and after M-phase respectively, if it has 14 chromosomes at interphase?
A) 14,14,7
B) 14,14,14
C) 7,7,7
D) 7,14,14
Explanation
Replication of DNA takes place at S-phase of cell cycle. The number of chromosomes reduced only in meiosis. So, the number remain 14, 14, and 14 in $G_{1}$ after S and after M-phase.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.