A fertilized egg of a plant has 40 chromosomes. The number of chromosomes present in the microspore mother cell is

(1) 20

(2) 40

(3) 60

(4) 80

Feathery stigma belongs to

(1) wheat

(2) pea

(3) Datura

(4) Caesalpinia

The normal type of embryo sac is 8-nucleated and

(1) 8-celled

(2) 7-celled

(3) 6-celled

(4) 5-celled

Embryo sac is

(1) megaspore

(2) microgametophyte

(3) female gametophyte

(4) megasporangium

The pollination of two flowers on different plants is known as

(1) xenogamy

(2) geitonogamy

(3) cleistogamy

(4) dichogamy

In some seeds, reminants of nucellus are also presistent. This residual, persistent nucellus is the

(1) pericarp

(2) perisperm

(3) chalazosperm

(4) mesosperm

Which among the following is attached to the proximal end of filament?

(1) Stamen

(2) Anther

(3) Petal

(4) Pollen sac

What is the number of microsporangia in each lobe of an angiosperm anther?

(1) Four

(2) Two

(3) Eight

(4) One

Which among the following extend longitudinally to become pollen sac?

(1) Microsporangia

(2) Filament of anther

(3) Tapetum

(4) Endothecium

Which among the following is not a feature of anther?

(1) Bilobed

(2) Dithecous

(3) Apocarpous

(4) Tetragonal