NEET Biology
NEETBiologyEvolutionClass 12

I keep getting “Hardy–Weinberg principle” questions wrong in Evolution. What's the trap?

thinking allele frequencies always drift over time.

The usual trap: thinking allele frequencies always drift over time. How to avoid it: deviations from Hardy–Weinberg equilibrium signal that evolution is happening. Go back to the definition — allele frequencies in a large, undisturbed population stay constant — no evolution.

Key point

Hardy–Weinberg principle

Common mistake

thinking allele frequencies always drift over time.

Memory tip

deviations from Hardy–Weinberg equilibrium signal that evolution is happening.

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