Biology - Questions and Answers, General Study (GK)

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491.

The Hepatitis-B, which affects liver, is actually a :

(a)Virus

(b)Protozoan

(c)Helminth

(d)Bacterium

Comment

Answer is: A

492.

The short upper part of the human intestine next to the stomach is called :

(a)Jejunum

(b)Duodenum

(c)Caecum

(d)Lieum

Comment

Answer is: B

493.

Which one of the following is not a mammal?

(a)Bat

(b)Duck-billed platypus

(c)Shark

(d)Whale

Comment

Answer is: C

494.

Consider the following statements :
1. Euglena is a procaryotic organism
2. Blue-green algae are eucaryotic organisms
Which of the statements given above is/are correct?

(a)1 only

(b)2 only

(c)Both 1 and 2

(d)Neither 1 nor 2

Comment

Answer is: A

495.

The phenomenon by which water molecules move from a weaker solution to a stronger solution through a semi-permeable membrane is called :

(a)Diffusion

(b)Translocation

(c)Osmosis

(d)Transpiration

Comment

Answer is: C

496.

In the human eye, the focusing is done by :

(a)Change in the refractive index of the eye fluids

(b)Change in the convexity of the eye lens

(c)To and fro movement of the eye lens

(d)To and fro movement of the retina

Comment

Answer is: C

497.

Match the following :
Disease Organism
A. Cholera 1. Bacterium
B. Mumps 2. Fungus
C. Ringworm 3. Protozoa
D. Sleeping sickness 4. Virus
A B C D

(a)1 2 4 3

(b)3 4 2 1

(d)1 4 2 3

Comment

Answer is: D

498.

Consider the following vitamins :
1. Niacin 2. Pyridoxin 3. Riboflavin 4. Thiamine
Which of these are water-soluble vitamins?

(a)1, 2 and 3

(b)1, 2, 3 and 4

(d)1 and 4

Comment

Answer is: B

499.

Match the following :
A. Theory of Mutation 1. Beadk and Tatum
B. Theory of Evolution 2. Jacob and Monod
C. One gene one enzyme hypothesis 3. Darwin
D. Operon concept 4. DeVries
A B C D

(a)4 3 1 2

(b)4 3 2 1

(d)3 4 1 2

Comment

Answer is: A

500.

Which one of the following techniques can be used to recognize the paternity of a child?

(a)Protein analysis

(b)Quantitative analysis of DNA

(c)DNA finger printing

(d)Chromosome counting

Comment

Answer is: C

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Biology - Questions and AnswersPage 50

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