Hardy Weinberg
- Created by: Hannah Kent
- Created on: 27-01-14 14:15
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- Hardy Weinberg
- p+q=1
- p= The frequency of the dominant allele
- q= The frequency of the recessive allele
- p(squared)+2pq +q(squared)=1
- q(squared)= The frequency of the homozygous recessive gentotype
- p(squared)= The frequency of the homozygous dominant allele
- Example
- Predict Allele Frequency
- A species of plant has either red or white flowers.
- Allele R(red) allele is dominant and the allele r(white) is recessive.
- If the frequency of R is 0.4, then the frequency of r= 1-0.4=0.6
- Allele R(red) allele is dominant and the allele r(white) is recessive.
- A species of plant has either red or white flowers.
- Predict Genotype Frequency
- If there are two alleles for flower colour (R and r), there are three possible genotypes- RR, Rr or rr.
- If the frequency of genotype RR(p-squared) is 0.34 and the frequency of the genotype Rr (2pq) is 0.27.
- The frequency of genotype rr (q-squared) must be 1-0.34-0.27=0.39
- If the frequency of genotype RR(p-squared) is 0.34 and the frequency of the genotype Rr (2pq) is 0.27.
- If there are two alleles for flower colour (R and r), there are three possible genotypes- RR, Rr or rr.
- Predict Allele Frequency
- p+q=1
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