This principle says that allele frequencies in a population are stable and is constant from generation to generation. The gene pool (total genes and their alleles in a population) remains a constant. This is called genetic equilibrium. Sum total of all the allelic frequencies is 1. Individual
NTA tests whether students understand that allele frequencies remain constant across generations in a stable population (genetic equilibrium), meaning the gene pool doesn't change. Students often confuse this with population size or mistakenly think allele frequencies change every generation, forgetting that equilibrium conditions prevent evolution. The key trap is assuming any population maintains equilibrium—students must remember that equilibrium requires no mutation, no selection, random mating, and no gene flow. To score correctly: recall that the sum of all allelic frequencies equals 1, and this constancy is why Hardy-Weinberg serves as a null hypothesis for detecting evolution in real populations.
Which one of the following factors will not affect the Hardy-Weinberg equilibrium? (NEET 2024)
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