Biological evolution — NEET Biology Questions

Practice 30 questions on Biological evolution from Evolution (NCERT Class 12, Chapter 6). Free samples below — get all 30 in the app.

30 Questions Evolution Class 12

Sample Questions — Biological evolution

Try 5 questions below from Biological evolution. Get all 30 in the MedicNEET app.

MCQ
Darwin was influenced by the population theory of
  • A. Newton
  • B. Pasteur
  • C. Mendel
  • D. Malthus
✅ Correct Answer: D
Malthus’ ideas on population pressure influenced Darwin’s understanding of competition and selection.
MCQ
Q1. Assertion (A): Natural selection leads to evolution by increasing the frequency of advantageous traits. Reason (R): Only those organisms with desirable acquired traits survive and reproduce.
  • A. Both A and R are true, and R is the correct explanation of A
  • B. Both A and R are true, but R is not the correct explanation of A
  • C. A is true, but R is false
  • D. A is false, but R is true
✅ Correct Answer: C
Natural selection acts on heritable traits, not on acquired ones. Acquired traits are not genetically passed.
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MCQ
Which scientist proposed that evolution is driven by use and disuse of organs?
  • A. Darwin
  • B. Lamarck
  • C. Haeckel
  • D. Wallace
✅ Correct Answer: B
Lamarck suggested that acquired traits due to use/disuse are inherited.
MCQ
Does modern biology accept Lamarck’s theory of acquired traits?
  • A. Yes, fully
  • B. Only for bacteria
  • C. No, it’s discarded
  • D. Only in evolution of plants
✅ Correct Answer: C
The theory is no longer accepted; it lacks genetic basis.
MCQ
Evolution by natural selection truly began when
  • A. prokaryotes first used oxygen
  • B. molecules first replicated to form more complex ones
  • C. cellular forms with metabolic differences originated
  • D. photosynthesis began
✅ Correct Answer: C
Natural selection required variation, which began when cells with different metabolic abilities appeared.

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