Geitonogamy involves:

1.	Pollination of a flower by the pollen from another flower of the same plant.
2.	Pollination of a flower by the pollen from another same flower.
3.	Pollination of a flower by the pollen from a flower of another plant in the same population.
4.	Pollination of a flower by the pollen from a flower of another plant belonging to a distant population.

Pollen tablets are available in the market for:

Function of filiform apparatus is to:

Non- albuminous seed is produced in:

Advantage of cleistogamy is:

1. More vigorous offspring

2. No dependence of pollinator

3. Vivipary

4. Higher genetic variability

Which one of the following statements is correct?

1. Sporogenous tissue is haploid

2. Endothecium produces the microspores

3. Tapetum nourishes the developing pollen

4. Hard outer layer of pollen is called intine

Both, autogamy and geitonogamy are prevented in:

1. Papaya

2. Cucumber

3. Castor

4. Maize