1. Tardigrade
  2. Question
  3. Biology
  4. Read the following statements about cell division and select the correct ones. (i) M phase represents the phase when actual cell division occurs and I phase represents the phase between two successive M phases. (ii) In the 24 hours average duration of cell cycle of a human cell, cell division proper lasts for only about an hour. (iii) M phase constitutes more than 95% of the duration of cell cycle.

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Q. Read the following statements about cell division and select the correct ones.
(i) M phase represents the phase when actual cell division occurs and I phase represents the phase between two successive M phases.
(ii) In the 24 hours average duration of cell cycle of a human cell, cell division proper lasts for only about an hour.
(iii) M phase constitutes more than 95% of the duration of cell cycle.

Cell Cycle and Cell Division

Solution:

Cell cycle consists of two basic phases, long non dividing I phase and a short-dividing M phase. In the average duration of 24 hours in the cell cycle of a 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