The mode of sexual reproduction in bacteria is by ______.

(a)

Formation of gametes

(b)

Endospore formation

(c)

Conjugation

(d)

Zoospore formation

All the following animals are continuous breeders, except.

(a)

Frogs

(b)

Honey bees

(c)

Poultry

(d)

Rabbit

The glandular accessory organ which produces the largest proportion of semen is ______.

(a)

Seminal vesicle

(b)

Bulbourethral gland

(c)

Prostate gland

(d)

Mucous gland

Identify the correct statements from the following.

(a)

Chlamydiasis is a viral disease

(b)

Gonorrhoea is caused by a spirochaete bacterium, Treponema palladium

(c)

The incubation period for syphilis is 2 to 14 days in males and 7 to 21 days in females

(d)

Both syphilis and gonorrhoea are easily cured with antibiotics

Which of the following phenotypes in the progeny are possible from the parental combination AxB?

(a)

A and B only

(b)

A,B and AB only

(c)

AB only

(d)

A, B, AB and O

A mRNA molecule is produced by _____.

(a)

Replication

(b)

Transcription

(c)

Duplication

(d)

Translation

Which of the following was the contribution of Hugo de Vries?

(a)

Theory of mutation

(b)

Theory of natural Selection

(c)

Theory of inheritance of acquired characters

(d)

Germplasm theory

Due to change in the diet containing less cellulose,___________ inhuman become functionless and is reduced to a Vermiform appendix.

(a)

Small intensive

(b)

large intensive

(c)

Rectum

(d)

caecum

The sporozoites of Plasmodium vivax are formed from ________

(a)

Gametocytes

(b)

Sporoblasts

(c)

Oocysts

(d)

Spores

The pathogenic bacteria causing bubonic plague is______

(a)

yersinia pestis

(b)

Clostridium tetani

(c)

Shigella sp

(d)

Streptococcus pneumoniae

__________is not linked to malaria

(a)

Haemozoin

(b)

TNF-a

(c)

Phencyclidine

(d)

Interleuin

Bacillary dysentery is caused due to __________________

(a)

Salmonella

(b)

Shigella

(c)

Clostridium

(d)

Yersinia

Which of the following are likely to be present in deep-sea water?

(a)

Archaebacteria

(b)

Eubacteria

(c)

Blue-green algae

(d)

Saprophytic fungi

The first living organism to be patented was________

(a)

E.coli

(b)

Saccharomyces

(c)

Pseudomonas putida

(d)

Lactobacillus

Which of the following is an r-species

(a)

Human

(b)

Insects

(c)

Rhinoceros

(d)

Whale

Identify the correctly matched pair.

(a)

Tuber - Allium cepa

(b)

Sucker - Pistia

(c)

Rhizome - Musa

(d)

Stolon - Zingiber

How many different kinds of gametes will be produced by a plant having the genotype AABbCC?

(a)

Three

(b)

Four

(c)

Nine

(d)

Two

Match list I with list II

List I	list II
A. A pair of chromosomes extra with diploid	i) monosomy
B. One chromosome extra to the diploid	ii) tetrasomy
C. One chromosome loses from diploid	iii) trisomy
D.Two individual chromosomes lose from diploid	iv) double monosomy

(a)

A	B	C	D
i	iii	ii	iv

(b)

A	B	C	D
ii	iii	iv	i

(c)

A	B	C	D
ii	iii	i	iv

(d)

A	B	C	D
iii	ii	i	iv

EcoRI cleaves DNA at ____.

(a)

AGGGTT

(b)

GTATATC

(c)

GAATTC

(d)

TATAGC

The time duration for sterilization process by using autoclave is ______ minutes and the temperature is ______.

(a)

10 to 30 minutes and 125° C

(b)

15 to 30 minutes and 121° C

(c)

15 to 20 minutes and 125° C

(d)

10 to 20 minutes and 121° C

A specific place in an ecosystem, where an organism lives and performs its functions is _____.

(a)

habitat

(b)

niche

(c)

landscape

(d)

biome

The following diagram represents

 

(a)

pyramid of number in a grassland ecosystem

(b)

pyramid of number in a pond ecosystem

(c)

pyramid of number in a forest ecosystem

(d)

pyramid of biomass in a pond ecosystem

Deforestation means ______.

(a)

growing plants and trees in an area where there is no forest

(b)

growing plants and trees in an area where the forest is removed

(c)

growing plants and trees in a pond

(d)

Removal of plants and trees

Groundnut is native of ____.

(a)

Philippines

(b)

India

(c)

North America

(d)

Brazil

True about interferon is that

(a)

It is synthetic antiviral agent

(b)

It inhibits viral replication in cells

(c)

It is specific for a particular virus

(d)

It causes infection