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Phyllotaxy

Assertion :In...

Question

Assertion :In spiral phyllotaxy, many leaves are present on a node Reason: In opposite phyllotaxy, two leaves are borne on a node

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 A If both the assertion and the reason are true and the reason is a correct explanation of the assertion
In spiral arrangement, each node bears a leaf and the leaves of the adjacent nodes roughly lie towards the opposite sides. In opposite arrangement, two leaves are borne on the opposite sides of a single node. When three or more leaves develop on the nodes, they form whorled arrangement.

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