DUMET Medical DUMET Medical Solved Paper-2002

  • question_answer
    Heterozygosity is most favoured in plants following:

    A)  cleistogamy   

    B)  autogamy

    C)  xenogamy     

    D)  geitonogamy

    Correct Answer: C

    Solution :

    The transfer of pollen grains form the anther of one flower to the stigma of a genetically different flower is called allogamy or xenogamy. The heterozygocity is most favoured in cross pollinated plants. Cleistogamy is a device of self pollination. The flowers showing cleistogamy remain always closed and never open. Geitonogamy is a type of pollination in which pollen grains of one flower are transferred to the stigma of another flower belonging to same plant. Autogamy is a type of self pollination in which an inter sexual or perfect flower is pollinated by its own pollen.


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