Manipal Medical Manipal Medical Solved Paper-2010

  • question_answer
    What type of cell division takes place in the functional    megaspore    initially    in angiosperms?

    A)  Homeotypic without cytokinesis

    B)  Reductional without cytokinesis

    C)  Somatic followed by cytokinesis

    D)  Meiotic followed by cytokinesis

    Correct Answer: A

    Solution :

     Embryo sac is developed from the functional megaspore.  The nucleus of functional megaspore undergoes homotypic mitotic division without cytokinesis when eight nucleus are formed, these undergo cell wall formation (except two polar nuclei). Megaspore is haploid therefore, reduction Cmeiotic) division is not possible.


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