Assertion :In case of vegetatively propagated crops, pure-line selection is not required. Reason: Hybrid vigour is mostly used in vegetatively propagated plants.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Assertion is incorrect but Reason is correct.

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Solution

The correct option is C Assertion is correct but Reason is incorrect.
In case of vegetatively propagated crops, a pure-line selection is not required. Pure line selection is useful only for sexually reproducing plants. Hybrid vigour is a tendency shown by a cross-bred species to show qualities which are superior to both the parents. It is mostly used in vegetatively propagated crops. Vegetative propagation does not involve sexual reproduction, because they do not involve sexual reproduction and hence loss of hybrid superiority.
So, the answer is C.

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Similar questions

Q. With regards to the assertion and reason, choose the correct option.
Assertion: In case of vegetatively propagated crops, pure line selection is not required.
Reason: Hybrid vigour is a property of vegetatively propagated plants.

Q. Assertion :

In case of vegetatively propagated crops, pure-line selection is not required.

Reason: Hybrid vigour is mostly used in vegetatively propagated plants.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion (A) Order and molecularity are same.

Reason (R) Order is determined experimentally and molecularity is the sum of the stoichimetric coeffcient of rate determining elementary step.

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