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Zoology - Evolution

Practise 34 AIIMS previous year questions on Evolution, compiled from papers spanning 2001 to 2019. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty AIIMS tests.

Evolution has been asked in 16 of the 19 years of AIIMS papers analysed (2001–2019), with 34 questions in all. 56% of them were easy, 29% moderate and 15% tough. Most of its questions came from 2009, with 4 questions that year. In the last three years (2017–2019) it had 6 questions across 5 papers, about 1.2 per paper.

The chapter's 9 topics are not weighted equally: Human Evolution (8 questions, 24%), Evidences of Evolution (7 questions, 21%), and Process or Mechanism of Evolution (5 questions, 15%) have been asked the most. Evidences of Evolution has produced the most tough questions (2).

  1. 1Assertion : The Cro-Magnon man was the direct ancestor of the living modern man. Reason : Cro-Magnon man had slightly prognathous face.25 May, 2019Human Evolution
  2. 2Assertion: Darwin's finches show a variety of beaks suited for eating large seeds, flying insects and cactus seeds. Reason : Ancestral seed-26 May, 2018Theory of Darwin
  3. 3Assertion: Interspecific competition is the only potent force in organic evolution. Reason : Unexceptionally two closely related species com26 May, 2018Process or Mechanism of Evolution
  4. 4Documented microfossils have been found that are as old as2017The Earth
  5. 5Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characters?2017Theory of Darwin
  6. 6Assertion : Analogous organs are a result of divergent evolution. Reason : Eye of octopus and of mammals depict divergent evolution.2017Evidences of Evolution
  7. 7The correct sequence of stages in the evolution of modern man (Homo sapiens), is2016Human Evolution
  8. 8Assertion : Hardy-Weinberg principle states that in the absence of disturbing influences, gene frequencies of large populations of sexually 2016Modern Theory of Evolution
  9. 9Which one of the following is reptilian ancestor of birds?2015Geological Timescale
  10. 10Assertion: Darwin's finches are a classical example of natural selection. Reason : Darwin explained that the difference in size and shape of2015Evidences of Evolution
  11. 11In Miller's experiment, he used a mixture of and water vapour in a closed flask to mimic early earth conditions. What was the temperature at2013The Earth
  12. 12The extinct human ancestor, who ate only fruits and hunted with stone weapons was2012Human Evolution
  13. 13Which of the following statements is correct ?2011Human Evolution
  14. 14Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characters?2011Process or Mechanism of Evolution
  15. 15The concept of chemical evolution is based on2010The Earth
  16. 16Homo erectus evolved during2009Human Evolution
  17. 17Which of the following postulates is related with Neo-Darwinism?2009Theory of Darwin
  18. 18Assertion: Jave Apeman, Peking man and Heidelberg man are the fossils of Homo erectus. Reason: Homo erectus evolved from Homo habilis.2009Human Evolution
  19. 19Assertion: The primitive atmosphere was reducing one i.e. without oxygen. Reason : In the primitive atmosphere, oxygen was involved in formi2009Origin of Universe and Life
  20. 20"Homo sapiens" implies2007Human Evolution
  21. 21Wings of pigeon, mosquito and bat show2007Evidences of Evolution
  22. 22Assertion : The earliest fossil form in the phylogeny of horse is eohippus. Reason : Eohippus lived during the early pliocene epoch.2007Evidences of Evolution
  23. 23Assertion : The earliest organisms that appeared on the Earth were non-green and presumably anaerobes. Reason : The first autotrophic organi2006Origin of Universe and Life
  24. 24Assertion : Human ancestors never used their tails and so the tail expressing gene has disappeared in them. Reason : Lamarck's theory of evo2005Evidences of Evolution
  25. 25Assertion : Comparative biochemistry provides a strong evidence in favour of common ancestry of living beings. Reason : Genetic code is univ2005Theory of Darwin
  26. 26Assertion : Darwin's finches show a variety of beaks suited for eating large seeds, flying insects and cactus seeds. Reason : Ancestral seed2005Process or Mechanism of Evolution
  27. 27Assertion : The duck-billed Platypus and the spiny ant-e ater, both are egg-laying animals yet they are grouped under mammals. Reason : Both2005Process or Mechanism of Evolution
  28. 28A baby has been born with a small tail. It is a case exhibiting2004Process or Mechanism of Evolution
  29. 29Potato and sweet potato2004Evidences of Evolution
  30. 30Assertion : Coacervates are believed to be the precursors of life. Reason : Coacervates were self-duplicating aggregates of proteins surroun2004Origin of Universe and Life
  31. 31Assertion : Natural selection is the outcome of differences in survival and reproduction among individuals that show variation in one or mor2004Evidences of Evolution
  32. 32The cranial capacity was largest among the2002Human Evolution
  33. 33Which of these are considered most essential in the origin of life?2001Origin of Universe and Life
  34. 34Genetic drift operates only in2001Mutation Theory of Hugo De Vries

Frequently Asked Questions

1.How many questions are available for Evolution?

This chapter includes 34 questions compiled from AIIMS papers spanning 2001 to 2019.

2.Are these questions only from AIIMS, or from other exams too?

These are AIIMS questions specifically for the Evolution chapter. Questions from other exams like NEET or JIPMER are organised separately under their respective exam sections.

3.Is Evolution an important chapter for AIIMS Zoology?

Evolution has appeared in 16 of the 19 years of AIIMS papers covered here, with 34 questions across 16 papers - about 2 per paper it appears in.

4.What is the difficulty level of Evolution questions in AIIMS?

Of the 34 questions analysed for this chapter, 56% are easy, 29% moderate and 15% tough. 2009 had the most, with 4 questions.

5.Which topics in Evolution should I focus on?

These topics have carried the most weightage in Evolution:

  • Human Evolution - 8 questions (24%)
  • Evidences of Evolution - 7 questions (21%)
  • Process or Mechanism of Evolution - 5 questions (15%)
  • Evidences of Evolution has produced the most tough questions (2).
6.Is Evolution's weightage in AIIMS going up or down?

Across all 16 papers analysed, Evolution has averaged about 2.1 questions per paper. In the last three years (2017–2019), that average has fallen, at about 1.2 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.