In majority of the angiosperms, pollen is released in a two-celled stage. The two cells are

In majority of angiosperms, pollens are discharged at:

In majority of angiosperms, pollens are discharged at:

In over 40% of angiosperms, pollen grains are shed at 3 celled stage, these 3 cells are :

In over 40% of angiosperms, pollen grains are shed at 3 celled stage, these 3 cells are :

(i) In 60% of the Angiosperms pollen is liberated in 3 celled stage. (ii) The pollen on reaching the stigma absorbs moisture and swells. (iii) Exine grows as pollen tube. (iv) Microspore is a diploid cell.

In a two-celled pollen:

A. The pollen grain is generally spherical measuring about 25 - 50 cm in diameter. B. In over 60% of angiosperms , pollen grains are shed at 2 celled stage. Select the statement that holds true for the above statement .

A. The pollen grain is generally spherical measuring about 25 - 50 cm in diameter. B. In over 60% of angiosperms , pollen grains are shed at 2 celled stage. Select the statement that holds true for the above statement .

60% of angiosperms, pollen grains shed at 2 celled stage, but in some species pollen grains are shed at 3 celled stage. Distinguish between 2 celled and 3 celled stage of pollen grains ?