Most Frequently Tested Topics (GEN-04)
| Topic | Frequency | Question Type | Recent Years |
|---|---|---|---|
| Homologous vs Analogous organs | Very High | Example identification | 2018, 2019, 2020, 2022 |
| Hardy-Weinberg calculation | High | Numerical problem | 2016, 2018, 2019, 2021 |
| Miller-Urey experiment gases and products | High | Factual | 2015, 2017, 2020 |
| Human evolution order/brain volume | Medium | Sequence/match | 2016, 2019, 2022 |
| Types of natural selection | Medium | Conceptual/example | 2017, 2021 |
| Adaptive radiation examples | Medium | Example identification | 2018, 2020 |
| Speciation types | Medium | Conceptual | 2019, 2021 |
NEET Trap Pattern Analysis
Trap 1 — Analogous vs Homologous Confusion: NEET presents: "Wings of bat and wings of eagle" (homologous — both vertebrate forelimbs) vs "Wings of bat and wings of butterfly" (analogous — different phyla). The option always includes a deliberately contradictory choice like "homologous organs showing convergent evolution" — impossible by definition (homologous → divergent).
Trap 2 — H-W Violation: NEET says "mutations occur at a constant rate" → students think equilibrium is maintained. Wrong — ANY mutation violates H-W. "Constant rate" is irrelevant.
Trap 3 — Small population H-W: NEET says "population is small and isolated" → students may think selection is operating. Correct answer: LARGE population required for H-W. Small population violates the large population condition (genetic drift).
Trap 4 — First biped vs first tool-maker: Australopithecus = first biped (5 mya). Homo habilis = first tool-maker (2 mya). NEET frequently swaps these two milestones.
PYQ-Style Question Strategy
When given an analogy/homology identification question: First determine the phylogenetic relationship (same phylum? → likely homologous). Then check function (same? → analogous). Never trust the superficial appearance — function and origin are what matter.