Question

In the $24$ hour average duration of cell cycle of a human cell, cell division properly lasts for about.

• A. 24 hours
• B. 12 hours
• C. 5 hours
• D. 7 hours

Answer 1

The correct option is A 24 hours

Cell cycle consists of two basic phases, long nondividing I phase and a short dividing M phase . In the average duration of 24 hours in the cell cycle of dividing human cell , M phase lasts for one hour (less than 5% of total) while I phase or interphase occupies 75−95% of total generation time.

So, A is the correct option.