This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Centrosome duplication takes place in- 
Select and explain. 
A. M phase, B. G0 phase, C. S phase, D. G2 phase
C: S phase
Answer: C: S phase 
Explanation: The centrosome cycle consists of four phases that are synchronized to cell cycle. These include: centrosome duplication during the G1 phase and S Phase, centrosome maturation in the G2 phase, centrosome separation in the mitotic phase, and centrosome disorientation in the late mitotic phase-G1 phase.