Q.2 Embryo sac is to ovule as ......... is to an anther.

1. stamen

2. filament

3. pollen grain

4. androecium

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

1. Stigma, ovule, embryo sac, placenta

2. Thalamus, pistil, style, ovule

3. Ovule, ovary, embryo sac, tapetum

4. Ovule, stamen, ovary, embryo sac

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

1. egg, nucellus, embryosac, integument

2. egg, embryosac, nucellus, integument

3. embryosac, nucellus, integument, egg

4. egg, integument, embryo sac, nucellus

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

(1) synergid, zygote and primary endosperm nucleus

(2) synergid, antipodal and polar nuclei

(3) antipodal, synergid and primary endosperm nucleus

(4) synergid, polar nuclei and zygote