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Artificial Hybridisation

Assertion :Th...

Question

Assertion :Thorns of Artabotrys are modified floral stalks. Reason: In Antigonon, the upper floral buds develop thorns

A

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

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B

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

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C

If the assertion is true but the reason is false

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D

If both the assertion and reason are false

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Solution

The correct option is C If the assertion is true but the reason is false
The pedicles or floral stacks of Artabotrys are modified into stiff curved thorns or hooks for helping in climbing In Antigonon the flowers occur in bunches in the axils of scale leave on the floral shoot The upper floral buds develop into tendrils instead of forming flowers.

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Artificial Hybridisation

Standard XII Biology

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