Hardy-Weinberg model

When the eitherele frequencies in a tribe remain ceaseless from elementration to generation, the population is said to be in Hardy-Weinberg resi callable where there is no evolution. Such conditions argon when there is a very bigger population size, no migration, no earnings mutations, random sexual union, and no indwelling selection. In a very large population, ge net incomeic drift, which is the kind in a populations allele frequencies callable to chance, can cause genotype frequencies to variety show over time. When there is no migration, and gene flow, the transfer of alleles surrounded by populations due to the run of individuals or gametes, occur, the frequence of any genotype that is in utmost frequency among the immigrants increase. When there is no net mutations, by ever-changing on allele into another, mutations change the gene pool. When random mating occurs with certain genotypes, indeed the random miscellany of gametes required for Hardy-Weinber g proportion does not occur. When there is no natural selection change in frequencies may occur due to various selection and reproductive success of genotypes and may give in different frequencies than the predicted frequencies by the Hardy-Weinberg equation.

Hardy-Weinberg equilibrium is determined by evaluating the allele frequencies for each allele (p and q), frequency of homozygotes (p2 and q2), and the frequency of heterozygotes (2pq); and in like manner the two equations, that contend that all alleles sum to ampere-second% (p+q=1) and that all individuals sum to 100% (p2+2pq+q2=1) Below is the work shown to calculate the frequ encies of a rabbit population that consists ! of 100,000 rabbits of which 25,000 are white and 75,000 are agouti. If 25,000 rabbits are white then 25,000/100,000=q2 So 0.25=q2 Route 0.25=q 0.5=q Since p+q=1 Then 1-q=p So 1-0.5=0.5 Thus p=0.5 And p2=(0.5)(0.5)=0.25 presently we know 2(0.5)(0.5)=2pq p2=homozygous dominant frequency=0.25 q2=recessive allele frequency=0.25 2pq=heterozygous frequency=0.5 If you extremity to get a full essay, order it on our website: BestEssayCheap.com

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