2019 GS Paper I, all questions

UPSC Prelims 2019 · GS Paper I

Question 98: Science and Technology

Which of the following are the reasons for the occurrence of multi-drug resistance in microbial pathogens in India?

  1. 1.Genetic predisposition of some people
  2. 2.Taking incorrect doses of antibiotics to cure diseases
  3. 3.Using antibiotics in livestock farming
  4. 4.Multiple chronic diseases in some people

Select the correct answer using the code given below.

a1 and 2
b2 and 3 only
c1, 3 and 4
d2, 3 and 4

AnswerUPSC’s answer is (b).

Statements 2 and 3 are correct. Multi-drug resistance in microbes grows when antibiotics are used wrongly: incorrect doses or incomplete courses let surviving bacteria develop resistance, and antibiotics used in livestock farming spread resistant microbes through food and the environment. A person's genetic predisposition or having multiple chronic diseases does not make the microbes themselves resistant.

  • 1. A person's genes do not make microbes resistant.
  • 2. Incorrect doses let resistant microbes survive.
  • 3. Antibiotics in livestock spread resistant microbes.
  • 4. Chronic disease in people does not itself cause microbial resistance.

How you could have got this

  1. If you were sure statement 1 is not correct, (a) and (c) go: each of them includes 1.

    What you needed to know: A person's genes do not make microbes resistant.

  2. Then, if you were sure statement 4 is not correct, (d) goes: it includes 4.

    What you needed to know: Chronic disease in people does not itself cause microbial resistance.

Only (b) is left. You didn’t need statements 2 or 3.

Which options go is worked out from UPSC’s key and the options, not by a model.

Why each option is right or wrong
  • (a) Genetic predisposition of people is not a cause of microbial resistance.
  • (b) Correct: wrong dosing and use in livestock cause resistance.
  • (c) Genetic predisposition and chronic diseases do not cause microbial resistance.
  • (d) Chronic diseases in people do not cause microbial resistance.

Answer: UPSC’s key. Explanation: written by UPSC Grade, not by UPSC.

Source: UPSC, Civil Services (Preliminary) Examination 2019, General Studies Paper I, Series A. The paper on upsc.gov.in.