12th Class Biology Sexual Reproduction in Flowering Plant / फूलों के पौधों में यौन प्रजनन Question Bank Assertion and Reason - Sexual Reproduction in Flowering Plants

  • question_answer
    Direction: Each of these questions contains two statements Assertion [A] and Reason [R]. Each of these questions also has four alternative choices, any one of which is the correct answer. You have to select one of the codes [a], [b], [c] and [d] given below.
    Assertion [A] Parthenocarpy involves the formation of seedless fruits.
    Reason [R] Apomixis occurs without fertilisation.

    A) Both A and R are true and R is the correct explanation of A

    B) Both A and R are true, but R is not the correct explanation of A

    C) A is true, but R is false

    D) A is false, but R is true

    Correct Answer: B

    Solution :

    [b] Both A and R are true, but R is not the correct explanation of A. The correct explanation is as follows Parthenocarpy involves the formation of seedless fruits, because the fruit formation from parthenocarpy does not involve pollination and fertilisation and hence, fruits develop without seed formation. Apomixis is a mechanism that mimics sexual reproduction and produces seeds without the union of male and female gametes. The diploid egg cell is formed without meiotic division and develops into embryo without fertilisation, e.g. members of Asteraceae and grasses.


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