Biology questions with answers

2,759 multiple-choice questions. Open any question for its answer and explanation.

Questions asked in State PSC and UPSC prelims, by topic. Each topic also has notes to read.

Read the notes: Evolution of Life →

1. Which one of the following animals is known as a 'living fossil'?Asked in WBPSC CS Prelims 2022 · Economics & Statistical Officer Exam 2005
2. NEET is an entrance examination for which of the following?Asked in FINANCE AND ACCOUNTS OFFICER TREASURY OFFICER 2016
3. "Archaeopteryx" is connecting link between:Asked in RPSC RAS Prelims 2008
4. mammoth is the ancestor of:Asked in RPSC RAS Prelims 2008
5. A tree species in Mauritius failed to reproduce because of the extinction of a fruit eating bird. Which one of the following was that bird?Asked in UPPCS Prelims 1998
6. The Mutation Theory of Evolution was enunciated byAsked in UPPCS Prelims 2005
7. Match List I with List II and select the correct answer using the codes given below the lists: List I List II A) Beadk and I. Theory of Mutation Tatum B) Jacob and II. Theory of Evolution Monod III. One gene one enzyme hy‐ C) Darwin pothesis IV. Operon concept D) De Vries Codes:Asked in UPPCS Prelims 1998
8. In the context of the organic evolution, the loss of limbs of snakes is explained by the phenomenon ofAsked in UPPCS Prelims 2002
9. Miller-Urey hypothesized that lightning bolts in the ocean could have been the origin of life on the earth. A new study found that the process called microlightning may have sparked life on earth. Microlightning refers toAsked in GS Asst Architect PWD 02 2025
10. Among living organisms, which one of the following is the most responsible factor for bringing about the origin of a new species?Asked in UPPCS Prelims 2002
11. Darwin and Wallace were both strongly influenced by the book "An Essay on the Principle of Population" written byAsked in WBPSC CS Prelims 2016
12. Who among the following is associated with the Law of Natural Selection?Asked in J.E (Electrical 2020) 2020