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AMU Medical AMU Solved Paper-1996

  • question_answer
    The cell ca of 2-celled proembryo divides transversely, whereas the cell cb does not divide at all. Even if the suspensor is formed that too develops from the cell ca. The embryo develops from the cell ca or its derivatives. The embryo development conforms to

    A)  onagrad type     

    B)  asterad type

    C)  caryophyllad type

    D)  chenopodiad type.

    Correct Answer: C

    Solution :

    : Caryophyllad type - The apical cell of the 2-celled proembryo divides transversely but the basal cell undergoes no further division, and the suspensor, if present, is always derived from the apical cell, e.g., caryophyllaceae. In chenopodiad type the apical cell of the 2-celled proembryo divides transversely and both the basal and apical cells contribute to the development of embryo, e.g., chenopodiaceae. In onagrad and   193 asterad type the apical cell of the 2-celled proembryo divides longitudinally.


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