NEET Sample Paper NEET Sample Test Paper-50

  • question_answer Read the following statements about cell division and select the correct ones
    (i) M phase represent the phase when actual cell division occurs and I phase represents the phase between two successive M phase
    (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

    A) (i) and (ii)                      

    B) (ii) and (iii)

    C) (i) and (iii)                     

    D) (i), (ii) and (iii)

    Correct Answer: A

    Solution :

    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 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.


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