Isogamy is observed in ______

(a)

Monocystis

(b)

Mammals

(c)

Trichonympha

(d)

Reptiles

______ cells nourish the sperms.

(a)

Leydig cells

(b)

Interstitial cells

(c)

Spermatogonic cells

(d)

Sertoli cells

In gypsy moth we find _________ type of sex determination.

(a)

ZW - ZZ

(b)

XX - XY

(c)

XX - XO

(d)

ZO - ZZ

The RNA polymerase of prokaryotes binds with ____________ factor to initiate polymerization.

(a)

rho

(b)

theta

(c)

sigma

(d)

psi

Continuous consumption of alcohol affects ___________

(a)

Heart

(b)

Kidney

(c)

liver

(d)

brain

Yellow fever is a _____________ type of disease.

(a)

Neurotropic

(b)

Viscerotropic

(c)

Pneumotropic

(d)

Dermotropic

A pair of fungal disease _____________

(a)

Amoebiasis, Kala-azar

(b)

Candidiasis, Athlete's foot

(c)

Ascariasis, Filariasis

(d)

Poliomyelitis, Amoebiasis

Identify the free living nitrogen fixing bacteria______

(a)

Azotobacter

(b)

Rhizobium

(c)

Glomus

(d)

Ideonella sakaiensis

Which is not an indice of species diversity?

(a)

Alpha diversity

(b)

Beta diversity

(c)

Delta diversity

(d)

Gamma diversity

Assertion (A): Pleiotropic gene affects multiIple traits
Reason (R): ABO blood group is an example for Pleiotropism

(a)

A and R are correct R explains A

(b)

A and R are incorrect

(c)

A is correct R is incorrect

(d)

A is incorrect R is correct