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Assertion: Corolla of cotton shows imbricate aestivation.Reason: In the corolla, three petals have one margin outside and the other inside. the posterior petal is completely inside and one of the anterior petals is completely outside. The overlapping starts at the anterior side and advances towards the posterior side.

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a

Both assertion and reason are correct and reason explains the assertion.

b

Both assertion and reason are correct but reason does not explain the assertion.

c

Assertion is correct but reason is incorrect

d

Both assertion and reason are incorrect

answer is D.

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Detailed Solution

In the corolla of cotton, which shows twisted aestivation, each petal has one margin inside and one margin outside.

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Assertion: Corolla of cotton shows imbricate aestivation.Reason: In the corolla, three petals have one margin outside and the other inside. the posterior petal is completely inside and one of the anterior petals is completely outside. The overlapping starts at the anterior side and advances towards the posterior side.