Q. Chromatid formation takes place in
A) S-phase
B) Metaphase
C) $G_{1}$-phase
D) $G_{2}$-phase
Explanation
Interphase of cell cycle is composed of $G_{1}$-phase, $G_{2}$-phase and S-phase. During S-phase, DNA replicates in semi conservative manner so, each chromosome is formed of two chromatids joined at centromere.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.