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7 questions · 2010 · answers as per the UPSC key

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All years of Health & Diseases · Full UPSC 2010 paper
UPSC 2010 · Q21 · Science & Technology › Health & Diseases · Save

Widespread resistance of malarial parasite to drugs like chloroquine has prompted attempts to develop a malarial vaccine to combat malaria. Why is it difficult to develop an effective malaria vaccine ?

(a) Malaria is caused by several species of Plasmodium
(b) Man does not develop immunity to malaria during natural infection
(c) Vaccines can be developed only against bacteria
(d) Man is only an intermediate host and not the definitive host
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Answer: (b) Man does not develop immunity to malaria during natural infection
UPSC 2010 · Q37 · Science & Technology › Health & Diseases · Save

Recently, LASIK (Laser Assisted In-Situ Keratomileusis) procedure is being made popular for vision correction.

Which one of the following statements in this context is not correct?

(a) LASIK procedure is used to correct refractive errors of the eye
(b) It is a procedure that permanently changes the shapes of the cornea
(c) It reduces a person’s dependence on glasses or contact lenses
(d) It is a procedure that can be done on the person of any age
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Answer: (d) It is a procedure that can be done on the person of any age
UPSC 2010 · Q90 · Science & Technology › Health & Diseases · Save

With reference to the treatment of cancerous tumours, a tool called cyberknife has been making the news. In this context, which one of the following statements is not correct?

(a) It is a robotic image guided system
(b) It delivers an extremely precise dose of radiation
(c) It has the capability of achieving sub-millimetre accuracy
(d) It can map the spread of tumour in the body
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Answer: (d) It can map the spread of tumour in the body
UPSC 2010 · Q125 · Science & Technology › Health & Diseases · Save

Consider the following statements:

  1. Hepatitis B is several times more infectious than HIV/AIDS
  2. Hepatitis B can cause liver cancer

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
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Answer: (c) Both 1 and 2
UPSC 2010 · Q126 · Science & Technology › Health & Diseases · Save

Excessive release of the pollutant carbon monoxide (CO) into the air may produce a condition in which oxygen supply in the human body decreases. What causes this condition ?

(a) When inhaled into the human body, CO is converted into CO₂
(b) The inhaled CO has much higher affinity for haemoglobin as compared to oxygen
(c) The inhaled CO destroys the chemical structure of haemoglobin
(d) The inhaled CO adversely affects the respiratory centre in the brain
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Answer: (b) The inhaled CO has much higher affinity for haemoglobin as compared to oxygen
UPSC 2010 · Q127 · Science & Technology › Health & Diseases · Save

Consider the following statements:

  1. Every individual in the population is equally susceptible host for Swine Flu.
  2. Antibiotics have no role in the primary treatment of Swine Flu.
  3. To prevent the future spread of Swine Flu in the epidemic area, the swine (pigs) must all be culled.

Which of the statements given above is/are correct ?

(a) 1 and 2 only
(b) 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
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Answer: (a) 1 and 2 only
UPSC 2010 · Q128 · Science & Technology › Health & Diseases · Save

With regard to the transmission of the Human Immunodeficiency Virus, which one of the following statements is not correct ?

(a) The chances of transmission from female to male are twice as likely as from male to female
(b) The chances of transmission are more if a person suffers from other sexually transmitted infections
(c) An infected mother can transmit the infection to her baby during pregnancy, at childbirth and by breast feeding
(d) The risk of contracting infection from transfusion of infected blood is much higher than an exposure to contaminated needle
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Answer: (a) The chances of transmission from female to male are twice as likely as from male to female