What does “Hardy-Weinberg principle” actually mean in Evolution, and why does it matter for NEET?
allele frequencies stay constant in a large, random-mating population with no mutation, migration, drift or selection.
In simple words: allele frequencies stay constant in a large, random-mating population with no mutation, migration, drift or selection. Getting Hardy-Weinberg principle clear matters because NEET questions on Evolution usually test this idea directly, not just a formula you memorised.
Key point
Hardy-Weinberg principle
Common mistake
thinking the equation means evolution has stopped everywhere.
Memory tip
any deviation from p^2 + 2pq + q^2 = 1 is a signal that evolution is happening.
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