UPSC General Studies Sample Paper General Studies Sample Paper-9

  • question_answer
    Consider the following statements.
    1. The development of seed without sexual fusion is called apomixis.
    2. Development of embryo from the egg cell without sexual fusion is called parthenogenesis.
    3. The development of embryo either from synergids or antipodal cell of the embryo sac is called apogamy.
    Which of the statements given above are correct?

    A)  2 and 3           

    B)         1 and 2

    C)  1 and 3

    D)  All of these

    Correct Answer: D

    Solution :

    [d] Apomixis is an asexual type of reproduction, in which the plant embryos grow from egg cells without being fertilised by pollen, the male part of the plant. Parthenogenesis is a form of asexual reproduction, in which growth and development of embryos occur without fertilisation. In plants, parthenogenesis means development of an embryo from an unfertilised egg cell and is a component process of apomixis. The asexual development of a sporophyte from a cell or celts of the gametophyte other than the egg.

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