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Home› UPSC CSE› Prelims GS Paper I› 2023 questions› Question 53

UPSC CSE Prelims

Subject: Technology Chapter: Biotechnology And Intellectual Property Rights (IPR)

2023 PYQ

Question 53

'Microsatellite DNA' is used in the case of which one of the following?

Choose one answer AStudying the evolutionary relationships among various species of fauna BStimulating 'stem cells' to transform into diverse functional tissues CPromoting clonal propagation of horticultural plants DAssessing the efficacy of drugs by conducting series of drug trials in a population

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Correct answer: A

Correct Option: A (Studying the evolutionary relationships among various species of fauna) Explanation: Microsatellites are highly variable short tandem repeat DNA markers used to assess genetic diversity, kinship and evolutionary relationships. Option-wise Analysis: A. Correct-microsatellite allele variation helps infer population structure and evolutionary relatedness. B. Incorrect-Converting stem cells into specialized tissues depends on cellular signalling, not microsatellite analysis. C. Incorrect-Clonal propagation relies on vegetative/tissue-culture techniques, not microsatellite sequences as the process. D. Incorrect-Clinical drug-efficacy studies use trial design and biomarkers rather than microsatellites as their defining method.

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