SMART INSTITUTE NMDCAT BIOLOGY-1 TS

1-It acts as a template strand for reverse transcriptase:

viral DNA

viral RNA

host DNA

T-Lymphocytes

2-The phenomenon of transcription in HIV life cycle occurs in:

nucleus

cytoplasm

inside viral capsid

none of these

3-Genetically engineered vaccine is present for:

Hepatitis A

Hepatitis C

AIDS

Hepatitis B

4-Induction leads to:

attachment

penetration

lysis

adsorption

5-Tumor causing virus is:

DNA enveloped

RNA enveloped

DNA non-enveloped

RNA non-enveloped

6-ATP molecules required for synthesis of a glucose molecule in Calvin-Benson cycle are:

36

38

12

18

7-Photophosphorylation is synthesis of:

ADP from ATP

Glucose 6-phosphate from glucose

ATP from ADP

NADP+ from NAD+

8-During process of lactic acid fermentation:

CO2 is produced

Ethanol is produced

NADH2 is oxidized

ATP are produced

9-Conversion of NAD+ INTO NADH require:

2 electrons 1 proton

1 electron 2 protons

2 electrons 2 protons

1 electron 1 proton

10-Carotenoids absorb strongly:

red to orange

yellow red

yellow green

blue violet

11-.............has unbranched chains of glucose and is soluble in hot water.

amylose

amylopectin

glycogen

cellulose

12-Silk protein is not present in:

silk clothes

silk worms

hair

spider's web

13-A group of lipids that does not contain fatty acids:

acylglycerols

phospholipids

waxes

terpenoids

14-Immediate sources of energy:

sucroses

glucose

fat

starch

15-In one strand of DNA, the base sequence is CATGACTAG. What is the base sequence on the other strand?

CATTAGGAC

GATGTCACT

TACACTTCT

GTACTGATC

16-Specificity of an enzyme is determined by:

No. and sequence of amino acids

charge on substrate

pH of environment

charge and shape of active site

17-Activators are usually derived from:

vitamins

proteins

carbohydrates

metals

18-The base sequence on messenger RNA is similar to which strand of DNA?

sense

non-sense

template

leading

19-In a naturally occuring chemical reaction, all active sites are occupied' the rate of reaction would be:

minimum and constant

maximum and accelerating

zero and constant

constant and maximum

20-Malonic acid is an example of:

irreversible inhibitor

competitive inhibitor

reversible inhibitor

non-competitive inhibitor

21-Origin of life is explained by all except:

endosymbiont hypothesis

hydrothermal vent hypothesis

creationism

chemical evolution

22-According to Lamarck, evolution is cumulative product of:

somatic changes

genetic changes

heritable variations

natural selection

23-Darwin wrote:

note book on origin of species

essay on origin of species

principles of population

both notebook and essay

24-Products of gene are:

protein

carbs

lipids

vitamins

25-For evolutionary success, mutations must occur in:

somatic RNA

germ cell DNA

somatic DNA

germplasm RNA

26-The minimum age of a fossil is:

10 years

10 months

10 thousands years

10 million years

27-Oldest fossils are of:

bacteria

horse

dinosaur

fishes

28-Regulatory sites other than active site, present over the enzymes are called:

active sites

catalytic groups

binding site

allosteric sites

29-The product of dark reaction is:

ATP

G3P

RuBP

PEP

30-Pathogenicity of bacteriophage is due to its:

envelop

nucleic acid

tail

capsid