The pollen is priduced in _______.

the outer wall of pollen is called __________ and inner wall is called ________.

Pollen grains are formed by __________ division in locules of anthers .

Statement 1: The pollen grains are deposited on the receptive surface of style . Statement 2 : After landing , the first visible change in pollen is hydration.

What is pollen calendar ?

Define pollen grain.

The study of pollen grains is

Intine of pollen grain is composed of.

IF one pollen grain produces two male gametes how many pollen grains are needed to fertillize 10 Ovules?

Callase enzyme which dissolved callose of pollen tetrads to separate four pollens is provided by