Question

Choose the incorrect statement regarding the Hardy-Weinberg principle:
(A) Allele frequencies in a population are stable and constant from generation to generation.
(B) Sum total of all the allelic frequencies in a population is 1
(C) Variation due to genetic drift results in a changed frequency of genes and alleles in future generations.
(D) Genetic recombination helps in maintaining Hardy-Weinberg equilibrium.

Answer 1

Hint: The Hardy-Weinberg equilibrium states that, in the absence of adverse forces, genetic variation in a population will remain constant from generation to generation.
Step by step solution:

Based on the allele frequency in populations that are not evolving, Hardy-Weinberg Equilibrium (HWE) is used to calculate the number of homozygous and heterozygous variant carriers. No mutation, random mating, no gene flow, an infinite population size, and no selection are the five fundamental Hardy-Weinberg suppositions. A population is considered to be in Hardy-Weinberg equilibrium when it satisfies all of the requirements (HWE). Human populations do not quite fit the criteria for HWE, and because their allele frequencies shift from generation to generation, the population continues to change. The homozygous genotype AA frequency is represented by p², the homozygous genotype AA frequency by q² , and the heterozygous genotype Aa frequency by 2pq in the equation. Additionally, since the locus's allele frequencies for each allele must add up to 1, p + q = 1.
According to the Hardy-Weinberg principle, the frequency of alleles in a population remains constant over time. In a population, the sum of all the allelic frequencies is, The accumulation of variants or their alteration, which leads to evolution, might be understood as disruption of the whole. Gene flow, mutation, genetic recombination, natural selection, and genetic drift are a few of the different causes that can modify the frequency of alleles, The results of natural selection can be: More people develop average character value when the population stabilizes, When a greater number of people acquire values other than the mean character value, the direction of change occurs. Change: More people at both extremes of the distribution curve now have peripheral character value, The Hardy-Weinberg equilibrium is disturbed by genetic recombination, which also changes allelic frequencies.
Hence, option (D) is correct.
Note: Deviations from equilibrium that violate the Hardy-Weinberg law include: Mutations: When a mutation only occurs in one direction, one allele may gradually replace another. An equilibrium with frequencies specified by the mutation rates is produced by mutation in both directions.