Biology Test

Question 1
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Change in the base sequence within a gene is called:

A
Mutation

B
Cloning

C
Fission

D
Breeding

Question 2
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With reference to Hershey and Chase experiments. Select the correct statements.

(A) Viruses grown in the presence of radioactive phosphorus contained radioactive DNA.

(B) Viruses grown on radioactive sulphur contained radioactive proteins.

(C) Viruses grown on radioactive phosphorus contained radioactive protein.

(D) Viruses grown on radioactive sulphur contained radioactive DNA.

(E) Viruses grown on radioactive protein contained radioactive DNA.

Choose the most appropriate answer from the options given below :

A
(D) and (E) only

B
(A) and (B) only

C
(A) and (C) only

D
(B) and (D) only

Question 3
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The largest gene in humans is:

A
Dystrophin

B
Titin

C
Insulin

D
Phosphofructokinase

Question 4
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After vascular injury, platelets encounter extracellular matrix constituents such as collagen and adhesive glycoprotein. On contact with these proteins platelets undergo.

1. Adhesion

2. Secretion

3. Aggregation

4. Degradation

A
1,2 and 3

B
1,2 and 4

C
1,2,3 and 4

D
1,2 and 4

Question 5
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Which among the following is not the property of proteins present in the membrane that support facilitated diffusion?

A
Not liable to saturate

B
Response to inhibitors

C
Regulated by hormones

D
Highly selective

Question 6
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Peroxisomes are involved in which type of pathway pertaining to plant photosynthesis?

A
Calvin Cycle

B
CAM pathway

C
Photorespiration

D
C₄ cycle

Question 7
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Stinging cells or cnidoblasts are the characteristics of:

A
Coelenterata

B
Annelida

C
Echinodermata

D
Platyhelminthes

Question 8
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Zygote is formed inside the:

A
Stigma

B
Style

C
Female gametophyte

D
Seed

Question 9
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Embryo sac contains:

A
3 eggs

B
2 eggs

C
1 egg

D
4 eggs

Question 10
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Which of the following regions has maximum bio-diversity?

A
Temperate rainforest

B
Taiga

C
Tropical rain forest

D
Mangroves

Submit Test

Biology Test - ...

Question 1

Mutation

Cloning

Fission

Breeding

Question 2

(D) and (E) only

(A) and (B) only

(A) and (C) only

(B) and (D) only

Question 3

Dystrophin

Titin

Insulin

Phosphofructokinase

Question 4

1,2 and 3

1,2 and 4

1,2,3 and 4

1,2 and 4

Question 5

Not liable to saturate

Response to inhibitors

Regulated by hormones

Highly selective

Question 6

Calvin Cycle

CAM pathway

Photorespiration

C4 cycle

Question 7

Coelenterata

Annelida

Echinodermata

Platyhelminthes

Question 8

Stigma

Style

Female gametophyte

Seed

Question 9

3 eggs

2 eggs

1 egg

4 eggs

Question 10

Temperate rainforest

Taiga

Tropical rain forest

Mangroves

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C₄ cycle