Evolution for NEET UG
Evolution explains how life's diversity arose over billions of years. Learn the evidence, Darwin's natural selection, Hardy–Weinberg equilibrium and the story of human evolution.
BiologyClass 1287 MCQs3 lessons14 flashcards3 memory tricks
What you'll learn
- Origin of life and evidence for evolution
Describe the Miller–Urey experiment and the main kinds of evidence for evolution. - Natural selection and Hardy–Weinberg equilibrium
Explain Darwin's theory and use the Hardy–Weinberg equation. - Human evolution
Put the main human ancestors in order with their key features.
Key formulas
| Allele frequencies | p + q = 1 |
|---|---|
| Genotype frequencies | p² + 2pq + q² = 1 |
Memory tricks
Homologous (same origin, different function, divergent evolution): human arm, whale flipper, bat wing. Analogous (different origin, same function, convergent evolution): bird and butterfly wings; sweet potato and potato.
Dryopithecus, Ramapithecus, Australopithecus, Homo habilis, Homo erectus, Neanderthal man, Homo sapiens.
p² + 2pq + q² = 1 holds only if none of these act. Any change in allele frequency means evolution is happening.
Try 3 NEET-style questions
Q1. Dinosaurs suddenly disappeared from the Earth about
- 65 million years ago
- 650 million years ago
- 6.5 million years ago
- 65,000 years ago
Show answer
Answer: (1) 65 million years ago
About 65 million years ago, the dinosaurs suddenly disappeared. The true reason is not known; some say climatic changes, others that most evolved into birds.
Q2. The evolution of different species in a geographical area, starting from a point and radiating to other habitats, is called
- adaptive radiation
- genetic drift
- gene flow
- stabilising selection
Show answer
Answer: (1) adaptive radiation
Adaptive radiation, as in Darwin's finches and Australian marsupials, produces many forms from one ancestor in a given area.
Q3. Pre-historic cave art developed about
- 10 lakh years ago
- 1000 years ago
- 2 million years ago
- 18,000 years ago
Show answer
Answer: (4) 18,000 years ago
Pre-historic cave art developed about 18,000 years ago; agriculture began around 10,000 years ago.
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