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BHU PMT BHU PMT (Screening) Solved Paper-2005

  • question_answer
    During the G1-phase of cell division :

    A)  RNA and proteins are synthesized

    B)  DNA and proteins are synthesized

    C)   cell prepares for M-phase

    D)  cell undergoes duplication

    Correct Answer: A

    Solution :

                     Cell division has two phase :  Karyokinesis : Division of nucleus  Cytokinesis : Division of cytoplasm. Karyokinesis also consist of two phase : (i) Inierphase is resting phase and consist of \[{{G}_{1}},S\]and \[{{G}_{2}}\]phase.
    Phase Activities
    \[{{G}_{1}}\] RNA and proteins  synthesis takes place
    S DNA replication takes place
    \[{{G}_{2}}\] Damaged DNA is repaired and division of centrosomes takes place
    (ii) M-phase-represents the phase of actual division.


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