Question

Where does replication of centriole occur?

• A. Interplase
• B. Prophase
• C. Late prophase
• D. Late telophase

Answer 1

The correct option is A Interplase

The interphase is the longest phase of cell cycle. It is divided into G${}_1$ or first growth phase, Synthesis or S phase and G${}_2$2or second growth phase. The S phase is characterised by biosynthetic activity like duplication of DNA and centrioles. The centrioles give rise to spindle fibres. Failure of centrosome regulation can cause mistakes in chromosome segregation and is associated with aneuploidy.

Thus, the correct answer is option A.