Question

Assertion (A): A typical microsporangium of angiosperms is generally surrounded by four wall layers.

Reason (R): The outer three wall layers perform the function of protection and help in dehiscence of anther to release the pollen and the innermost layer called tapetum nourishes the pollen grains.

Options

• Both assertion (A) and reason (R) are true, and reason (R) is the correct explanation of assertion.

• Both assertion (A) and reason (R) are true, but reason (R) is not the correct explanation of assertion.

• Assertion (A) is true but reason (R) is false.

• Both assertion (A) and reason (R) are false.

Answer 1

Both assertion (A) and reason (R) are true, and reason (R) is the correct explanation of assertion.

Explanation:

Both statements are true. The four layers are epidermis, endothecium, middle layers and tapetum; the stated protective, dehiscence and nutritive roles explain their functions.