Tobacco plant has been made resistant to the tobacco mosaic virus by :

(1) introducing T-DNA of Agrobacterium

(2) introducing a gene for virus coat protein

(3) introducing meristematic activity in somatic cells

(4) applying newer generation pesticides to the crops

Subtopic:  Drugs & Alcohol Abuse |
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Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I                       Column II
I. THC                          1. Marijuana
II. Barbiturates             2. Sedative
III. Diacetylmorphine     3. Smack
IV. LSD                         4. hallucinogen
Codes:
I II III IV
A. 1 2 3 4
B. 2 1 4 3
C. 2 1 3 4
D. 1 2 4 3

Subtopic:  Drugs & Alcohol Abuse |
 65%
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The receptors for the drug shown below are located in:
    

1. CNS and CVS 2. CVS and GIT
3. CNS and GIT 4. CNS and PNS
Subtopic:  Drugs & Alcohol Abuse |
 80%
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Common cold is not cured by antibiotics because it is

1. caused by a Gram-negaive bacterium

2. not an infectious disease

3. viral disease

4. caused by a Gram-positive bacterium

Subtopic:  Common Cold & Malaria Introduction |
 88%
From NCERT
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Maturation of lymphocytes takes place in

(1) thymus

(2) Bone marrow

(3) Liver

(4) Both 1 and 2

Subtopic:  Details of Immunity |
 78%
From NCERT
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Which of the following represents the form of Plasmodium that is released from the erythrocyte by lysis?

1. Trophozoite

2. Schizont

3. Merozoite

4. Macrogametocyte

Subtopic:  Treatment & Life Cycle of Malaria |
 56%
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Which of the following is very effective sedative and pain killer?

1.  Cocaine.

2.  Heroin.

3.  Morphine.

4.  Cannabis extract.

Subtopic:  Drugs & Alcohol Abuse |
 91%
From NCERT
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Cellular oncogenes can be best explained as

1.  Mutated gene.

2.  Present in normal cells.

3.  Present only in the cells of benign tumour.

4.  Genes due to which cells loose the property of contact inhibition.

Subtopic:  Cancer |
 57%
From NCERT
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Vaccines are available for the disease like

I.   Polio.

II.  Diphtheria.

III. Pneumonia.

IV. Tetanus.

1.  I, II, III & IV

2.  I and IV only

3.  I only

4.  I, II & IV only

Subtopic:  Active & Passive Immunity |
 60%
From NCERT
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Odd one out?

1.  PMNL-neutrophils.

2.  Monocytes.

3.  Natural killer cells.

4.  Interferons.

Subtopic:  Details of Immunity |
 89%
From NCERT
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