Question

ASERTION : Double fertilisation is unique to angiosperms.

REASON : Triple fusion is the fusion of one of the sperm nuclei with the egg nucleus to form zygote.

choose the correct option
(a) Both A and R are true and R is correct explanation of the assertion.

(b) Both A and R are true but R is not the correct explanation of the assertion.

(c) A istrue, but R is false.

(d) A isfalse, but R is true. ​

Answer 1

Answer:

(c) A is true, but R is false.

Explanation:

☆Assertion:

• double fertilization is only present in angiosperms, that's why they are unique to them.
• it is due to arrangement of 8nucleated-7celled structure.
• so assertion is true.

☆Reason:

• triple fusion》when one male gamete get fertilized with diploid polar nuclei to form endosperm.
• it's called 'triple' because in fusion it involves 3 nucleus, one male gamete and two of polar nuclei.

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