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- Describe the Hardy-Weinberg law and explain the conditions that must be met for it to hold true. Apply the Hardy-Weinberg law in analyzing population genetics for gene frequency, sex linkage, equilibrium, and heterozygote frequencySuppose a population of organisms is in Hardy–Weinberg equilibrium with respect to a gene that has two alleles, Y and y. The YY genotype has a frequency of 0.11, the Yy genotype has a frequency of 0.44, and the y genotype has a frequency of 0.45. Calculate the frequency of each allele to two decimal places. Y allele frequency: y allele frequency:In a population of 800 people, if p= 30%, what are the expected numbers of individuals with the genotypes TT, Tt, and tt? (Chp. 4) *Answers should only be the number. *H/W equation: p2+ 2pq + q² - 1 Genotype TT Genotype Tt- Genotype t
- Below is a life table for a hypothetical organism. What is the expected lifetime reproductive success for individuals carrying the A1 allele? (Note: RS: reproductive success) # of individual RS of survivor surviving RS of survivor Age carrying A1 allele carrying A2 allele 1000 1 600 1 420 1 336 1 4 302 272 2 6. 218 1 7 152 1 8. 91 1 9. 46 10 1.84 2.44 3.27 3.54 13A population is made up of individuals where 77 have the A1A1 genotype, 65 have the A1A2 genotype, and 123 have the A2A2 genotype. What is the allele frequency of A1? Answer to 2 decimal places.Describe genotype frequencies and allele frequencies in a population.
- Consider the gene that determines Rh blood type in human beings. This gene has two alleles (D, d) with D being dominant to d. Suppose that in a certain island population of 1000 individuals there are 250 individuals that have the genotype DD, 500 individuals that are heterozygotes, and 250 have the genotype dd. What are the genotype and allele frequencies in this population?What long-term effects can gene flow have on any two populations that are exchanging genes? View keyboard shortcutsDescribe how the phenotype of individuals with sickle-cell disease influences how common the HbS allele is in the population: Do individuals with sickle-cell disease typically have many offspring? What effect does the fact that individuals with sickle-cell disease do not produce many offspring have on the frequency of the HbS allele in the population over time? Given this, do you expect the HbS allele to be common or rare in populations?
- A population of rabbits may be brown (the dominant phenotype) or white (the recessive phenotype). Brown rabbits have the genotype BB or Bb. White rabbits have the genotype bb. The frequency of the BB genotypre is .35 What is the frequency of the heterozygous rabbits? What is the frequency of the B allele? What is the frequency of the b allele?60 individuals have the genotype AA28 individuals have the genotype Aa12 individuals have the genotype aaWhat is the frequency of the A allele?Think of how many alleles in total?hint: add up the number of A alleles in this population: AA= 60+60 and Aa= 28.Add those together and divide by the total number of alleles.Graph 2: Draw the predictions of a population genetics model when the starting allele frequency of the A1 allele is 0.2, individuals that are homozygous for the A1 allele have a 5% increase in fitness, and otherwise all assumptions of the Hardy Weinberg model are true. 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0