BrainIt

Biology

Evolution

Origin of life, evidences of evolution, adaptive radiation, natural selection, Hardy-Weinberg equilibrium, and human evolution build this chapter. Recall meets calculation: allele frequency problems from Hardy-Weinberg sit next to fossil and homology questions.

Exam rules change between cycles. Confirm dates, syllabus and pattern against NTA's official site. We are not NTA.

Weightage: what the paper actually did

Evolution carried 3 questions in the NEET 2026 paper. One paper is a data point, not a destiny: NTA moves weight between chapters every cycle, which is why the weightage tables deserve care. The stable facts are the paper's shape: 180 questions, 720 marks, +4 right, −1 wrong.

Sample PYQs from this chapter

Real questions NTA asked from Evolution, with the answer and the working. Try before you peek.

Question 1 · NEET 2026

Evolution of human appears parallel to the progressive development of brain and language skills. As such, the evolution of individual species in the sequence of their appearance is:
  1. A.Ramapithecus →\to Homo habilis →\to Homo erectus →\to Neanderthal →\to Homo sapiens
  2. B.Homo sapiens →\to Ramapithecus →\to Homo habilis →\to Neanderthal →\to Homo erectus
  3. C.Homo habilis →\to Homo erectus →\to Ramapithecus →\to Neanderthal →\to Homo sapiens
  4. D.Neanderthal →\to Ramapithecus →\to Homo habilis →\to Homo erectus →\to Homo sapiens
Answer and explanation

Answer: A

The accepted chronological order of human evolution proceeds from Ramapithecus through Homo habilis and Homo erectus to Neanderthal man and finally modern Homo sapiens. Only option A reflects this sequence; the others wrongly place Homo sapiens, Ramapithecus or Neanderthal out of order.

Question 2 · NEET 2026

Which of the following is not an example of convergent evolution?
  1. A.Flippers of penguins and dolphins
  2. B.Eyes of octopuses and mammals
  3. C.Fore limbs of whales and bats
  4. D.Wings of butterflies and birds
Answer and explanation

Answer: C

Convergent evolution produces analogous structures in unrelated lineages performing similar functions, as with flippers of penguins and dolphins, eyes of octopuses and mammals, and wings of butterflies and birds. The forelimbs of whales and bats, however, share the same basic skeletal plan inherited from a common ancestor; they are homologous structures illustrating divergent evolution. Therefore the whale-and-bat forelimbs are the exception. Why the other options are wrong: - (A) Analogous flippers evolved independently for swimming - convergent. - (B) Camera eyes evolved independently in molluscs and mammals - convergent. - (D) Wings of insects and birds arose independently - convergent.

How to practise Evolution

Chapter by chapter, against real past-paper questions, on a screen: NEET is computer based from 2027. Read the chapter once, then attempt its PYQs until your accuracy stops climbing, and let the wrong answers tell you which lines to reread. If the chapter keeps refusing to stick, that has its own guide. There is also a free 12-question mock on the exam screen.

Nearby Biology chapters

Questions

How many questions did Evolution have in NEET 2026?

Evolution carried 3 questions in the NEET 2026 paper. Weightage shifts between cycles, so treat it as a probability, not a promise.

Where can I practise Evolution PYQs for NEET?

In the BrainIt app, free until the 2027 exam: its bank holds 50,000 past NTA questions tagged to all 83 chapters, including this one, with accuracy tracked per chapter. Sample questions from this chapter are on this page.

Is Evolution important for NEET 2027?

It is part of the Biology syllabus the paper draws from, and NEET 2027 is computer based, so practise it on a screen. Your own accuracy in the chapter matters more than any weightage table: a heavy chapter you already score well on needs less time than a light one you keep missing.

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