The normal type of embryo sac is 8-nucleated and

(1) 8-celled

(2) 7-celled

(3) 6-celled

(4) 5-celled

Which among the following is not a wall layer of microsporangium?

(1) Endothecium

(2) Nucellus

(3) Tapetum

(4) Middle layers

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 not a feature of anther?

(1) Bilobed

(2) Dithecous

(3) Apocarpous

(4) Tetragonal

Embryo sac is

(1) megaspore

(2) microgametophyte

(3) female gametophyte

(4) megasporangium

Which among the following extend longitudinally to become pollen sac?

(1) Microsporangia

(2) Filament of anther

(3) Tapetum

(4) Endothecium

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 is attached to the proximal end of filament?

(1) Stamen

(2) Anther

(3) Petal

(4) Pollen sac