Pollen grain has a prominent two layered wall. The inner wall

Pollen grain has prominent apetures called _______.

Wall is two -layered in

Wall is two -layered in

Wall is two -layered in

Name a prominent aperture in pollen grain exine.

The cells of anther wall layer which nourish the developing pollen grains is related to all of the following features, except

The cells of anther wall layer which nourish the developing pollen grains is related to all of the following features, except

The cells of anther wall layer which nourish the developing pollen grains is related to all of the following features, except

What words will correct fill (a) , (b),(c) and (d) in the following paragraph ? (a) developed into a pollen grain. The outer layer is (b) and inner layer is intine . The inner layer is made up to cellulose and ( c) .In 60% of the angiosperms, pollen grains are shed at (d) celled stage .