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321.

The definitive nucleus on fertilization gives:

A.	Secondary	B.	Zygote
C.	Oospore	D.	Primary endospermic nucleus

322.

The diffusion of water through a differentially permeable membrane is called:

A.	Osmosis	B.	Imbibition
C.	Diffusion	D.	Water movement

323.

The DNA is made up of the following four bases:

A.	A.T.G.E.	B.	A.T.G.C.
C.	A.T.U.C.	D.	A.G.U.C.

324.

The edible part of the apple is:

A.	Mesocarp and endocarp	B.	Endosperm
C.	Only mesocarp	D.	Fleshy thalamus

325.

The effect of the genotype of the pollen grain on the phenotype of the seed is termed as:

A.	Apospory	B.	Pollinia
C.	Endopolyploidy	D.	Xenia

326.

The embroid (formed by vegetative cell) develops into a plant, which, in fact, grows out of anther as in:

A.	Tobacco	B.	Wheat
C.	Barley	D.	Sorghum

327.

The evolutionary history of a species is referred as:

A.	Phylogeny	B.	Progeny
C.	Organic evolution	D.	Natural selection

328.

The factor that determine the movement of solutes through a membrane is:

A.	Concentration gradient	B.	Molecular size
C.	Charge and active transport	D.	All the above

329.

The fibrous fruit of coconut is dispersed by:

A.	Air	B.	Water Potential
C.	Animals	D.	None of the above

330.

The first easily observed sign of a water deficit in a plant is decrease in the tugor of its:

A.	Root hairs	B.	Stem cells
C.	Xylem vessels	D.	Leaf cells