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CET Biology 15

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BCG vaccine is used against

  1. tuberculosis

  2. leprosy

  3. food poisoning

  4. none of these


Correct Option: A

Graft of skin from another human is

  1. heterografting

  2. allografting

  3. autografting

  4. none of these


Correct Option: B

Jaipur foot is made up of

  1. vulcanised jubber

  2. aluminium

  3. both 1 and 2

  4. none


Correct Option: C

Which of the following techniques is used to measure cerebral blood volume?

  1. PET imaging

  2. ECG

  3. CT scanning

  4. EEG


Correct Option: A

Brown sugar is

  1. barbiturate

  2. heroine

  3. LSD

  4. hashish


Correct Option: B

Excessive cholesterol intake leads to thickening of arteries called

  1. rhematic heart

  2. atherosclerosis

  3. blood pressure

  4. cardiac arrest


Correct Option: B

What is correct about amniocentesis?

  1. Intrauterine diagnosis

  2. Withdrawal of allantoic fluid from pregnant women.

  3. Chemical analysis of fluids of pregnant women.

  4. Culturing amniotic cells and study of metaphasic chromosomes to identify chromosomal abnormality.


Correct Option: D

The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely that it will replace the function of

  1. purkinje system

  2. sinoatrial node

  3. atrioventricular node

  4. atrioventricular bundle


Correct Option: B

Among the following countries listed below, who has first of all launched an official National family planning programme?

  1. USA

  2. UK

  3. France

  4. India


Correct Option: D

9-tetrahydrocannabinol is extracted from

  1. papaver

  2. cannabis

  3. ergot

  4. erythroxylon


Correct Option: B

An IUCD is

  1. copper -T

  2. condom

  3. vasectomy

  4. pill


Correct Option: A

Demographic features of developing countries are

  1. high infant mortality, low fertility, young age

  2. high fertility, high density, high mortality rate and young age distribution

  3. high fertility, falling mortality rate, rapid population growth and young age distribution

  4. high density, high mortality, uneven population growth and very old age distribution


Correct Option: C

Endemic hunger and chronic undernourishment are found in

  1. Europe

  2. South Asia and parts of Africa

  3. South Asia and Latin America

  4. South Asia, Latin America and parts of Africa


Correct Option: D

The decannial growth rate (1991-2001) of India was approx

  1. 21%

  2. 25%

  3. 15%

  4. 10%


Correct Option: A

Most of the contraceptive pills contain

  1. FSH + estrogen

  2. LH + progesterone

  3. estrogen + progesterone

  4. FSH + LH


Correct Option: C

A force which acts against the achievement of the highest possible level of population growth, is known as

  1. population pressure

  2. saturation level

  3. environmental resistance

  4. carrying capacity


Correct Option: C

A population that exceeds its environmental resources, is most likely to

  1. crash

  2. exceed its biotic potential

  3. lower environmental resistance

  4. none of these


Correct Option: A

Study of trends in human population growth and prediction of future development is called

  1. demography

  2. biography

  3. kalography

  4. psychology


Correct Option: A
Explanation:

Study of trends in human population growth and prediction of future development is called demography.

Hepatitis-B vaccine is

  1. first generation vaccine

  2. second generation vaccine

  3. third generation vaccine

  4. fourth generation vaccine


Correct Option: B

A person was found to HIV positive by ELISA. The test that affirms is

  1. southern blot

  2. northern blot

  3. western blot

  4. all of these


Correct Option: C

In sonography, wavelength of ultrasound used is

  1. 20,000 Hz/sec

  2. 40-50 kHz/sec

  3. 1-15 MHz

  4. 1500-2000 MHz


Correct Option: C

Vaccines are

  1. the same as monoclonal antibodies

  2. treated bacteria or viruses, or one of their proteins

  3. short-lived

  4. MHC proteins


Correct Option: B

Myasthenia gravis a common auto-immune disease, is characterized by the production of antibodies against self protien called as

  1. follicle stimulating hormone

  2. bile

  3. acetylcholine

  4. epinephrine


Correct Option: C

The basic principle involved in the working of anti-AIDS drug is that

  1. they block protein synthesis

  2. they inhibits or reduce the replication potentials by disturbing reverse transcriptase

  3. they dissolve the protein coat of virus

  4. they block the enzymatic reactions necessary for metabolism of virus


Correct Option: B

Which one of the following is a matching pair of drug and its category?

  1. Amphetamine - Stimulant

  2. Lysergic acid dimethyl amide - Narcotic

  3. Heroine - Psychotropic

  4. Benzodiazepam - Pain killer


Correct Option: A

AIDS virus is also known as

  1. HIV

  2. HTLV III

  3. LAV

  4. all of these


Correct Option: D

The monoclonal antibodies are developed by

  1. hybridoma

  2. gene silencing

  3. finger printing

  4. transgenesis


Correct Option: A

Which type of immunoglobulin is present in colostrum/mother’s milk?

  1. IgA

  2. IgG

  3. IgD

  4. IgE


Correct Option: A
Explanation:

IgA immunoglobulin is present in colostrum/mother’s milk. Colostrum contains antibodies to protect the newborn against disease. In general, protein concentration in colostrum is substantially higher than in milk.

Which of the following is a function of the spleen?

  1. Produces T-cells

  2. Removes worn out red blood cells

  3. Produces immunoglobulins

  4. Produces macrophages


Correct Option: B

Positron Emission Tomography (PET) is one of the best methods for functional imaging because

  1. isotopes with long half-lives are used

  2. isotopes with short half-lives are used

  3. positrons are directly used in imaging

  4. isotopes of basic body elements are used for imaging


Correct Option: D

The secondary lymphoid system comprises of

  1. thymus and liver

  2. spleen, lymphocytes, tonsils and mucosal lymph tissue

  3. RBCs, WBCs and platelets

  4. all of the above


Correct Option: B
Explanation:

The secondary lymphoid system comprises of spleen, lymphocytes, tonsils and mucosal lymph tissue. 

Injection of antitoxin or toxoid serum is given to prevent

  1. diphtheria

  2. small pox

  3. chicken pox

  4. chronic headache


Correct Option: A

Which of the following is true for T–lymphocytes?

  1. They cannot release antibodies.

  2. They mature in lymph nodes.

  3. They comprise 10–15% of lymphocytes.

  4. They are principal cells in lymph node’s cortical centre.


Correct Option: D
Explanation:

 T-lymphocytes are principal cells in lymph node’s cortical centre.

Immunoglobulins have been named so because they are basically

  1. protein globulin

  2. fat globules

  3. oil globules

  4. starch globules


Correct Option: A

SQUID/Superconducting Quantum Interference Device is helpful in the study of

  1. electrical potential of different parts of brain

  2. electrical potential of different parts of heart

  3. weak magnetic fields in different parts of brain

  4. weak magnetic fields in different parts of heart


Correct Option: C
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