JCECE Medical JCECE Medical Solved Paper-2013

  • question_answer
    The arrangement of the nuclei in a normal embryo sac in the dicot plants is

    A) \[~2+4+2\]            

    B)  \[3+2+3\]

    C) \[2+3+3\]            

    D)  \[3+3+2\]

    Correct Answer: B

    Solution :

     In angiosperms (dicots), the Pofygonum type of embryo sac is most common. In this embryo sac, the arrangement of the nuclei is 3 + 2 + 3, i.e., 3 in antipodal cells, 2 as polar nuclei (which later fuse and form a diploid secondary nucleus); and 3 in egg appratus (2 in synergids and 1 in egg cell).


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