UPSC CSE Prelims · 2021
UPSC Prelims 2021 Science — Solved PYQs with Answers
12 solved UPSC (IAS) Prelims 2021 Science & Technology previous year questions, each with the correct answer and a detailed explanation.
← All UPSC 2021 PYQs · All Science PYQs · Science strategy
- Bollgard I and Bollgard II technologies are mentioned in the context of:
- In the context of hereditary diseases, consider the following statements: 1. Passing on mitochondrial diseases…
- The term ‘ACE2’ is talked about in the context of:
- Consider the following statements: 1. Adenoviruses have single stranded DNA genomes whereas retroviruses have …
- With reference to recent developments regarding ‘Recombinant Vector Vaccine’, consider the following statement…
- Which one of the following is a reason why astronomical distances are measured in light-years?
- In a pressure cooker, the temperature at which the food is cooked depends mainly upon which of the following? …
- Consider the following: 1. Bacteria 2. Fungi 3. Virus Which of the above can be cultured in artificial/synthet…
- With reference to street - lighting, how do sodium lamps differ from LED lamps? 1. Sodium lamps produce light …
- Bisphenol A (BPA), a cause of concern, is a structural/key component in the manufacture of which of the follow…
- ‘Triclosan’, considered harmful when exposed to high levels for a long time, is most likely present in which o…
- Water can dissolve more substances than any other liquid because