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Assertion: The apical bub is the only so...

Assertion: The apical bub is the only source of auxins
Reason: Removal of apical bud promotes lateral bud growth.

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If the assertion is false but reason is true

Text Solution

Verified by Experts

The correct Answer is:
D
(e ) The apical bud is not the only source of auxins.Young developing leaves also produce auxins and it has been shown that auxins from this source may inhibit lateral buds sprout. However, if a paste of auxin is painted on the cut end of the decapitated shoot , the lateral buds remain inhibited, as if the apical bud is present.
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