Previous year questions of ICAR UG & NEET Exam asked from the Biology topic ‘Origin of Life and Evolution’

Previous year questions of ICAR UG & NEET Exam asked from the Biology topic ‘Origin of Life and Evolution’

1. Thorns of Bougainvillaea and tendril of Passiflora are (ICAR UG 2022)

   1. Analogous organs 

   2. Homologous organs

   3. Vestigial organs

   4. Endemic organs 

Correct answer is b. Homologous organs.

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2. The eye of an octopus and the eye of a dog show different structural patterns, yet they perform similar functions. This is an example of (ICAR UG 2021)

   1. Analogous organs that have evolved due to divergent evolution 

   2. Homologous organs that have evolved due to convergent evolution 

   3. Homologous organs that have evolved due to adaptive radiation 

   4. Analogous organs that have evolved due to convergent evolution 

Correct answer is d. Analogous organs that have evolved due to convergent evolution

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3. In 1953, S.L. Miller in his experiment, created electric discharge in closed flask containing CH₂, H₂, NH3 and water vapour at  (ICAR UG 2020)

   1. 750 °C 

   2. 800 °C  

   3. 850 °C

   4. 700 °C

Correct answer is b. 800 °C  

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4. Which of the following was NOT present in the experimental flask of Stanley Miller? (ICAR UG 2019)

   1. Methane

   2. Ammonia

   3. Amino acids

   4. Nucleotides

Correct answer is d. Nucleotides.

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5. Which of the following cannot be attributed to Darwin? (ICAR UG 2018)

   1. Description of finches on Galapagos islands

   2. Heritability of variations

   3. Speciation due to mutations

   4. More offsprings from Individuals adapted to their environment

Correct answer is c. Speciation due to mutations.

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ICAR UG & NEET UG EXAM NOTES ON BIOLOGY TOPIC ‘Origin of Life and Evolution’’

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