Morphology Of Flowering Plants Root Stem And Leaf Question 87

Question: Read the assertion and reason carefully:

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

Options:

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

Show Answer

Answer:

Correct Answer: D

Solution:

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.