Manipal Medical Manipal Medical Solved Paper-2009

  • question_answer
    There are 10 flowers in one individual plant of Crotalaria. In each microsporangium of every stamen of all the flowers, there are 30 microspore mother cells. How many pollen grains are formed from that plant?

    A)  4,000           

    B)  10,000

    C)  24,000          

    D)  48,000

    Correct Answer: D

    Solution :

     Crotalaria is a member of PapiMonaceae (Fabaceae), in which 10 stamens are present in a flower. Each stamen has four mkrosporangia, in which microspore mother cells are found. Each microspore mother cell gives rise to a pollen tetrad. Thus, 10 flowers (with 10 stamens in each) having   30   microsporangia   in   each microsporangium will form 48,000 pollen grains.


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