Sexual Reproduction in Flowering Plants

Pollen tablets are available in the market for

1. in vitro fertilization
2. breeding programmes
3. supplementing food
4. ex situ conservation.

Function of filiform apparatus is to

1. recognize the suitable pollen at stigma
2. stimulate division of generative cell
3. produce nectar
4. guide the entry of pollen tube.

Non-albuminous seed is produced in

1. maize
2. castor
3. wheat
4. pea.

Perisperm differs from endosperm in

1. being a diploid tissue
2. its formation by fusion of secondary nucleus with several sperms
3. being a haploid tissue
4. having no reserve food.

Advantage of cleistogamy is

1. no dependence on pollinators
2. vivipary
3. higher genetic variability
4. more vigorous offspring.

Megasporangium is equivalent to

1. nucellus
2. ovule
3. embryo sac
4. fruit.

Which one of the following statements is correct?

1. Endothecium produces the microspores.
2. Tapetum nourishes the developing pollen.
3. Hard outer layer of pollen is called intine.
4. Sporogenous tissue is haploid.

Animal vectors are required for pollination in

1. Vallisneria
2. mulberry
3. cucumber
4. maize.

Albuminous seeds store their reserve food mainly in

1. endosperm
2. cotyledons
3. hypocotyl
4. perisperm.

Megaspores are produced from the megaspore mother cells after

1. mitotic division
2. formation of thick wall
3. differentiation
4. meiotic division.