_________________ are obligate aerobes.

(a)

Streptococcus

(b)

Clostridium

(c)

Micrococcus

(d)

E. Coli

Each virus posses only one type of nucleic acid:

(a)

Either DNA or RNA

(b)

DNA only

(c)

Neither DNA nor RNA

(d)

RNA only

Mycorrhizae are the example of _______

(a)

Fungitasis

(b)

Amensalism

(c)

Antibiosis

(d)

Mutualism

Rice tungro is caused by ___________ .

(a)

fungi

(b)

bacteria

(c)

mycoplasma

(d)

viruses

Colour revealed by Gram positive bacteria after Gram staining is _________ .

(a)

red

(b)

indigo

(c)

dark violet

(d)

blue

In Agaricus, _________ type of sexual reproduction occurs.

(a)

spermatization

(b)

somatogamy

(c)

oogamy

(d)

isogamy

Enzymes that catalyse interconversion of optical, geometrical or positional isomers are ______________

(a)

Ligases

(b)

Lyases

(c)

Hydrolases

(d)

Isomerases

Choose the wrong statement among the following :

(a)

In earthworm, a single male genital pore is present.

(b)

Setae help in locomotion of earthworms.

(c)

Muscular layer in the body wall of earthworm is made up of circular muscles only

(d)

Typhlosole is part of the intestine of earthworm

The Tidal Volume of a normal person is ______.

(a)

800 mL

(b)

1200 mL

(c)

500 mL

(d)

1100 - 1200 mL

Which part of the human brain is concerned with the regulation of body temperature?

(a)

Cerebellum

(b)

Cerebrum

(c)

Medulla oblongata

(d)

Hypothalamus