The right equation for water potential is

• $\mathrm{\psi } = {\mathrm{\psi }}_{\mathrm{p}} - ( {\mathrm{\psi }}_{\mathrm{s}} + {\mathrm{\psi }}_{\mathrm{m}} )$

• $\mathrm{\psi } = {\mathrm{\psi }}_{\mathrm{p} }+ ( {\mathrm{\psi }}_{\mathrm{s}} - {\mathrm{\psi }}_{\mathrm{m}} )$

• ${\mathrm{\psi }}_{\mathrm{w}} = {\mathrm{\psi }}_{\mathrm{s}} + {\mathrm{\psi }}_{\mathrm{p}}$

• ${\mathrm{\psi }}_{\mathrm{w}} = {\mathrm{\psi }}_{\mathrm{p}} + {\mathrm{\psi }}_{\mathrm{\pi }} + {\mathrm{\psi }}_{\mathrm{m}}$

Operator genes are controls to which gene mechanism?

• Structural gene

• Activator gene

• Regulator gene

• Modulac gene

How many ovum are developed in ovary of Hydra?

• Two

• Many

• One

• Three

44.

Type of blastula in chick is

• discoblastula

• coeloblastula

• amphiblastula

• holoblastula

Which organ is enlarged in malarial patient?

• Spleen

• Kidney

• Gall bladder

• Liver

DNA is specific because it has

• number of nucleotides

• specific nature of phosphate and sugar

• arrangement of protein in DNA

• specific nature of purine and pyrimidines

Role of carbohydrate in protoplasm

• as catalyst

• for energy

• as enzymes

• for synthesis

When embryonic development is completed in mother but the embryo not accept nutritent from mother, which is known as

• ovoviparous

• viviparous

• oviparous

• All of these

Gastrula is differ from blastula in

• three germ layers

• micromeres

• blastocoel

• None of the above

Sertoli cells are associated with

• kidney of rabbit

• ovary of frog

• testis of rabbit

• ovary of rabbit