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4 questions · 2021 · answers as per the UPSC key

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UPSC 2021 · Q69 · Science & Technology › Health & Diseases · Save

Consider the following :

  1. Bacteria
  2. Fungi
  3. Virus

Which of the above can be cultured in artificial/synthetic medium?

(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
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Answer: (a) 1 and 2 only
UPSC 2021 · Q70 · Science & Technology › Health & Diseases · Save

Consider the following statements :

  1. Adenoviruses have single-stranded DNA genomes whereas retroviruses have double-stranded DNA genomes.
  2. Common cold is sometime caused by an adenovirus whereas AIDS is caused by a retrovirus.

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: (b) 2 only
UPSC 2021 · Q73 · Science & Technology › Health & Diseases · Save

The term 'ACE2' is talked about in the context of

(a) genes introduced in the genetically modified plants
(b) development of India's own satellite navigation system
(c) radio collars for wildlife tracking
(d) spread of viral diseases
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Answer: (d) spread of viral diseases
UPSC 2021 · Q75 · Science & Technology › Health & Diseases · Save

'Triclosan', considered harmful when exposed to high levels for a long time, is most likely present in which of the following?

(a) Food preservatives
(b) Fruit-ripening substances
(c) Reused plastic containers
(d) Toiletries
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Answer: (d) Toiletries