a)Calculate the frequencies of A1A1, A1A2 and A2A2 genotypes in generation 1 if the initial population...
a)Calculate the frequencies of A1A1, A1A2 and A2A2 genotypes in generation 1 if the initial population (in generation 0) consists of 0.3 A1A1, 0.4 A1A2, and 0.3A2A2 genotypes.
(b) What allelic and genotypic frequencies will occur in generation 2?
(c)What must you assume to answer these questions?
Homework Answers
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a)Calculate the frequencies of A1A1, A1A2 and A2A2 genotypes in
generation 1 if the initial population...
If the genotypes A1A1, A1A2, and A2A2 have frequencies 0.5, 0.25, and 0.25 respectively, what are...
If the genotypes A1A1, A1A2, and A2A2 have frequencies 0.5, 0.25, and 0.25 respectively, what are the frequencies of the A1 and A2 alleles? b) After a single generation of random mating, what are the expected frequency of A1A1, A1A2 and A2A2 in the offspring? c) If A2 is a recessive allele causing freckles, how many freckled offspring do you expect if there are 441 offspring in total?
The survival to sexual maturity rates for genotypes A1A1, A1A2, and A2A2 are 90%, 85%, &...
The survival to sexual maturity rates for genotypes A1A1, A1A2, and A2A2 are 90%, 85%, & 75%, and their fecundities are 50, 55, and 70 offspring, respectively. a. what are the absolute fitnesses (W) of these genotypes? b. Using A1A1 as the fitness reference, what are the genotype’s relative fitnesses (w)? c. If the frequency of the A2 allele is p = 0.5, what will be its frequency one generation later?
Imagine a population that has 180 A1A1 individuals, 144 A1A2 individuals, and 175 A2A2 individuals. Male A1A1...
Imagine a population that has 180 A1A1 individuals, 144 A1A2 individuals, and 175 A2A2 individuals. Male A1A1 is the preferred mate of females and gets all the matings. What would the genotype frequencies be for the A1A2 offspring of this population? Answer to 2 decimal places.
At a biallelic locus, suppose that genotypes A1A1, A1A2, and A2A2 have relative fitnesses 1, 1.02,...
At a biallelic locus, suppose that genotypes A1A1, A1A2, and A2A2 have relative fitnesses 1, 1.02, and 1.03 and that the frequency of A1 is p = 0.1. (a) What is the population’s mean relative fitness? (b) What are the “marginal” or allele-specific relative fitnesses of A1 and A2? (c) What is the expected frequency of A1 in the following generation?
Imagine a population that has 124 A1A1 individuals, 160 A1A2 individuals, and 27 A2A2 individuals. Male...
Imagine a population that has 124 A1A1 individuals, 160 A1A2 individuals, and 27 A2A2 individuals. Male A1A1 is the preferred mate of females and gets all the matings. What would the genotype frequencies be for the A1A2 offspring of this population? Answer to 2 decimal places.
Scientists have identified three genotypes (A1A1, A1A2, A2A2) at a locus encoding the enzyme peroxidase in...
Scientists have identified three genotypes (A1A1, A1A2, A2A2) at a locus encoding the enzyme peroxidase in Ponderosa pine trees growing at Crater Lake. The observed number of individuals we these genotypes are given below: A1A1 = 135 A1A2 = 44 A2A2 = 11 Calculate the EXPECTED number of individuals with each genotype, as predicted under Hardy-Weinberg equilibrium. Carry out a chi-square goodness-of-fit test on the observed and expected numbers of individual Ponderosa pine trees given. What is the chi-square value...
Imagine a population that has 179 A1A1 individuals, 184 A1A2 individuals, and 26 A2A2 individuals. Male...
Imagine a population that has 179 A1A1 individuals, 184 A1A2 individuals, and 26 A2A2 individuals. Male A1A1 is the preferred mate of females and gets all the matings. What would the genotype frequencies be for the A1A2 offspring of this population?
(Hardy Weinberg Equation) In a population of rabbits, there are 423 A1A1, 1484 A2A2, and 1661...
(Hardy Weinberg Equation) In a population of rabbits, there are 423 A1A1, 1484 A2A2, and 1661 A1A2 individuals. If the enviornment changes so that the homozygous recessive genotype suffers a reduction of fitness where it's fitness is now 0.59 , but the other genotypes are unaffected, what will be the frequency of the dominant allele in the NEXT generation?
You are studying a population of milkweeds and you find the following allele frequencies: f(A1A1) =...
You are studying a population of milkweeds and you find the following allele frequencies: f(A1A1) = 0.36 f(A1A2) = 0.48 f(A2A2) = 0.16 If the fitness of the heterozygote (w12) is 0.9 and the average fitness of the population is 0.916, what do we expect the new frequency of the heterozygote genotype to be in the next generation?
please answer all questions. 3) In a given population, the egg-to-adult survival rates of genotypes A1A1,...
please answer all questions.
3) In a given population, the egg-to-adult survival rates of genotypes A1A1, A1A2, and A2A2 are 70, 80, and 90 percent respectively, and their fecundity values are 90, 150, and 200 eggs per female respectively. a) Calculate the absolute fitnesses (W) and relative fitnesses (w) of these genotypes. b) Which of these genotypes do you expect to increase in frequency over time? Explain.
please answer all questions.
3) In a given population, the egg-to-adult survival rates of genotypes A1A1, A1A2, and A2A2 are 70, 80, and 90 percent respectively, and their fecundity values are 90, 150, and 200 eggs per female respectively. a) Calculate the absolute fitnesses (W) and relative fitnesses (w) of these genotypes. b) Which of these genotypes do you expect to increase in frequency over time? Explain.
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