Can yyou answer number 5 please advance genetic As discussed in class, the dark (melanic) form of the peppered moth, Biston betularia, has a survival advantage in industrialized regions. The melanic allele is dominant to the typical (light) allele. In a particular forest within an industrialized region, the frequency of the melanic allele is 0.7 and the typical allele is 0.3. The light form of moths have a reproductive success that 47% that of the dark form. What will the allele frequencies be after one generation of selection? Given a population that up to now had been in Hardy-Weinberg equilibrium. Assume two alleles, one locus, rho = 0.5, and distinctly different (and unambiguous) phenotypes associated with each genotype. Now assume internal fertilization and that all matings over one generation are 100% assortative with regard to the trait in question. What are the genotype frequencies before the round of assortative mating? What are the genotype frequencies in the generation that follows this round of assortative mating? Solution A) The genotype frequencies during the Hardy-Weinberg equlibrium must be favouring heterozygosity i.e. any individual with any given genotype has the equal chance of mating with another individual of any given genotype. The equlibrium of individual allele frequencies and the proportion of the various genotypic combinations is established when p value statistically significant value is 0.5 the disimilar genotypic populations mates together. B) Assortive mating leads to an over abundance of homozygous individuals Which are likely to share similar genotypes as When matings of similar phenotypes occur more frequently than by random chance, the likelihood of offspring receiving two copies of an identical allele increases, disrupting the Hardy-Weinberg expectations. There will be the increase in total population variance as homozygosity will be increased for example if we have a trait controlled by 2 loci then at equilibrium would deviate one from another significantly. Assortative mating can act as a powerful mechanism for genetic change in a population specially where phenotype can be attributed to the interaction at 2 loci with no dominance, it is easier that 100% assortative mating results in an overall increase in homozygosity and total population variance thus affecting genotype frequencies..

1. Can yyou answer number 5 please advance genetic As discussed in class, the dark (melanic)
form of the peppered moth, Biston betularia, has a survival advantage in industrialized regions.
The melanic allele is dominant to the typical (light) allele. In a particular forest within an
industrialized region, the frequency of the melanic allele is 0.7 and the typical allele is 0.3. The
light form of moths have a reproductive success that 47% that of the dark form. What will the
allele frequencies be after one generation of selection? Given a population that up to now had
been in Hardy-Weinberg equilibrium. Assume two alleles, one locus, rho = 0.5, and distinctly
different (and unambiguous) phenotypes associated with each genotype. Now assume internal
fertilization and that all matings over one generation are 100% assortative with regard to the trait
in question. What are the genotype frequencies before the round of assortative mating? What are
the genotype frequencies in the generation that follows this round of assortative mating?
Solution
A) The genotype frequencies during the Hardy-Weinberg equlibrium must be favouring
heterozygosity i.e. any individual with any given genotype has the equal chance of mating with
another individual of any given genotype. The equlibrium of individual allele frequencies and the
proportion of the various genotypic combinations is established when p value statistically
significant value is 0.5 the disimilar genotypic populations mates together.
B) Assortive mating leads to an over abundance of homozygous individuals Which are likely to
share similar genotypes as When matings of similar phenotypes occur more frequently than by
random chance, the likelihood of offspring receiving two copies of an identical allele increases,
disrupting the Hardy-Weinberg expectations.
There will be the increase in total population variance as homozygosity will be increased for
example if we have a trait controlled by 2 loci then at equilibrium would deviate one from
another significantly.
Assortative mating can act as a powerful mechanism for genetic change in a population specially
where phenotype can be attributed to the interaction at 2 loci with no dominance, it is easier that
100% assortative mating results in an overall increase in homozygosity and total population
variance thus affecting genotype frequencies.