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NEET NEET SOLVED PAPER 2019

  • question_answer
    Extrusion of second polar body from egg nucleus occurs:                                                      [NEET 5-5-2019]

    A) Before entry of sperm into ovum

    B) Simultaneously with first cleavage

    C) After entry of sperm but before fertilization

    D) After fertilization

    Correct Answer: C

    Solution :

    Sperms enters into \[2{}^\circ \] oocytes which breaks metaphase promoting factor and activates anaphase promoting complex which causes extrusion of second polar body by completing meiosis-II


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