The layers in the walls of the microsporangium that helps in the dehiscence of anther to release the pollen include:

I.	Epidermis
II.	Endothecium
III.	Middle layers
IV.	Tapetum

1.	I and II only	2.	I, II, and III only
3.	II and III only	4.	I, II, III, and IV

How many nuclei in embryosac of an angiosperm are surrounded by cell walls?

Endospermic seeds are seen in:

During microsporogenesis, meiosis occurs in:

From among the sets of terms given below, identify those that are associated with the gynoecium.

Starting from the innermost part, the correct sequence of parts in an ovule are:

From the statements given below, choose the option that is true for a typical female gametophyte of a flowering plant:

Choose the correct statement from the following:

From among the situations given below, choose the one that prevents both autogamy and geitonogamy.

In a fertilised embryo sac, the haploid, diploid, and triploid structures are: