Hardy-Weinberg model
Title: Hardy-Weinberg model
Category: /Science & Technology/Biology
Details: Words: 296 | Pages: 1 (approximately 235 words/page)
Hardy-Weinberg model
Category: /Science & Technology/Biology
Details: Words: 296 | Pages: 1 (approximately 235 words/page)
When the allele frequencies in a population remain constant from generation to generation, the population is said to be in Hardy-Weinberg equilibrium where there is no evolution. Such conditions are when there is a very large population size, no migration, no net mutations, random mating, and no natural selection.
In a very large population, genetic drift, which is the change in a population's allele frequencies due to chance, can cause genotype frequencies to change over
showed first 75 words of 296 total
You are viewing only a small portion of the paper.
Please login or register to access the full copy.
Please login or register to access the full copy.
showed last 75 words of 296 total
sum to 100% (p+q=1) and that all individuals sum to 100% (p2+2pq+q2=1) Below is the work shown to calculate the frequencies 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 Now 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