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In a population, a locus with 3 alleles (a, b, and c) showed the following genotypic...
question 14 and 15 13. Out of 100 red oaks (Quercus rubra) in a population, the...
question 14 and 15
13. Out of 100 red oaks (Quercus rubra) in a population, the frequency of B allele is 0.45. The other allele at the locus, a recessive allele (b), was expressed in 20 individuals. Determine: 1) observed and expected genotype frequencies, and 2) whether the pop'n is at H-W Equilibrium. a. If you conclude its not in H-W Eq., design a study that would eliminate or confirm one evolutionary mechanisms that may be at work. 14. Challenge...
Consider a locus of interest that has two alleles: A and a. A diploid individual carrying...
Consider a locus of interest that has two alleles: A and a. A diploid individual carrying these alleles can have one of three genotypes: AA, Aa, or aa; a population will consist of some combination of AA, Aa, and aa individuals. The relatively frequency of each of these genotypes makes up the population's structure. Hardy and Weinberg independently figured out that, in the absence of forces that cause evolutionary change, the population structure will 'settle' or default to equilibrium values,...
Give the Hardy–Weinberg expected genotypic frequencies for an autosomal locus with three alleles, where the frequencies...
Give the Hardy–Weinberg expected genotypic frequencies for an autosomal locus with three alleles, where the frequencies of alleles A1, A2, and A3 are defined as p, q, and r, respectively. Set the problem up and show your work. Tay–Sachs disease is an autosomal recessive disorder. Among Ashkenazi Jews, the frequency of Tay–Sachs disease is 1 in 3600. If the Ashkenazi population is mating randomly for the Tay–Sachs gene, what proportion of the population consists of heterozygous carriers of the Tay–Sachs...
Consider a gene locus with two alleles: A and a. suppose that in a certain population, the freque...
Consider a gene locus with two alleles: A and a. suppose that in a certain population, the frequency of allele A to be p and allele a to be 1-p. Under Hardy-Weinberg's Equilibrium (HWE), the two alleles randomly unite to form three genotypes AA, Aa and aa with probabilities [p,2p(-, a) Suppose we know a population is under HWE, from which n subjects were sampled t0 me their genotypes. The observed frequencies are (ni, n2, ns) of the three genotypes.Form...
1.)If the population frequencies of two alleles at a locus are B = 0.5 and b...
1.)If the population frequencies of two alleles at a locus are B = 0.5 and b = 0.5, what is onepossible set of frequencies for the three resulting genotypes that would NOT reflect Hardy- Weinberg equilibrium? 2.)In a population that is in Hardy-Weinberg equilibrium, the frequency of the homozygous recessive genotype is 0.09. What is the frequency of individuals that are homozygous for the dominant allele? 3.)In humans, Rh-positive individuals have the Rh antigen on their red blood cells, while...
1. A population of 2000 peppered moths has the following genotypic frequencies:aa: 0.16, Aa: 0.04. AA:...
1. A population of 2000 peppered moths has the following genotypic frequencies:aa: 0.16, Aa: 0.04. AA: 0.80. a. The frequency of the 'a' allele in this population is (show your work for full credit): frequency of the a allele is __ . Calculate the expected genotypic frequencies under Hardy-Weinberg equilibrium. Is this population in equilibrium for genotypic frequencies? Show all your work for full credit. (Do a rough comparison by eye of the observed and expected frequencies to test for...
2. Locus Fhas two alleles: F, and F2. In a sample of 1,200 individuals, 400 are...
2. Locus Fhas two alleles: F, and F2. In a sample of 1,200 individuals, 400 are F,F 600 are FiF2, and 200 are F2F2. A. What are the allele frequencies? (3 pt) B. Given the allele frequencies you just calculated, what genotypic frequencies would be expected under Hardy-Weinberg equilibrium? (3 pt)
For a given gene locus, you identify the following genotypic frequencies: AA = 0.65 BB =...
For a given gene locus, you identify the following genotypic frequencies: AA = 0.65 BB = 0.25 What is the frequency of the AB genotype? What is the frequency of the A allele? What is the frequency of the B allele? Show all work.
1. A particular gene in a given population of individuals has two alleles, A and a....
1. A particular gene in a given population of individuals has two alleles, A and a. The frequency of the A allele equals the frequency of the a allele. What are the expected genotype frequencies, assuming the population is in Hardy-Weinberg equilibrium? AA = 0.5, aa = 0.5 AA = 0.25, Aa = 0.50, aa = 0.25 O A = 0.5, a = 0.5 The answer cannot be determined because the allele frequencies are not provided.
1. Fixation of Dominant Alleles Start with a population that has a gene with two alleles (A and a...
1. Fixation of Dominant Alleles Start with a population that has a gene with two alleles (A and a) with classical Mendelian dominance that are at equal frequency (p0.5. q 0.5). Assume this first generation is at hardy Weinberg equilibrium. Calculate the genotype frequencies AA- a. Aa b. Now assume some environmental change that makes the recessive phenotype completely unfit (fitness- 0). Calculate the allele frequencies and genotype frequencies in the second generation. (Hint: Your calculations might be easier if...
question 14 and 15
13. Out of 100 red oaks (Quercus rubra) in a population, the frequency of B allele is 0.45. The other allele at the locus, a recessive allele (b), was expressed in 20 individuals. Determine: 1) observed and expected genotype frequencies, and 2) whether the pop'n is at H-W Equilibrium. a. If you conclude its not in H-W Eq., design a study that would eliminate or confirm one evolutionary mechanisms that may be at work. 14. Challenge...
Consider a locus of interest that has two alleles: A and a. A diploid individual carrying these alleles can have one of three genotypes: AA, Aa, or aa; a population will consist of some combination of AA, Aa, and aa individuals. The relatively frequency of each of these genotypes makes up the population's structure. Hardy and Weinberg independently figured out that, in the absence of forces that cause evolutionary change, the population structure will 'settle' or default to equilibrium values,...
Consider a gene locus with two alleles: A and a. suppose that in a certain population, the frequency of allele A to be p and allele a to be 1-p. Under Hardy-Weinberg's Equilibrium (HWE), the two alleles randomly unite to form three genotypes AA, Aa and aa with probabilities [p,2p(-, a) Suppose we know a population is under HWE, from which n subjects were sampled t0 me their genotypes. The observed frequencies are (ni, n2, ns) of the three genotypes.Form...
1. A population of 2000 peppered moths has the following genotypic frequencies:aa: 0.16, Aa: 0.04. AA: 0.80. a. The frequency of the 'a' allele in this population is (show your work for full credit): frequency of the a allele is __ . Calculate the expected genotypic frequencies under Hardy-Weinberg equilibrium. Is this population in equilibrium for genotypic frequencies? Show all your work for full credit. (Do a rough comparison by eye of the observed and expected frequencies to test for...
2. Locus Fhas two alleles: F, and F2. In a sample of 1,200 individuals, 400 are F,F 600 are FiF2, and 200 are F2F2. A. What are the allele frequencies? (3 pt) B. Given the allele frequencies you just calculated, what genotypic frequencies would be expected under Hardy-Weinberg equilibrium? (3 pt)
1. A particular gene in a given population of individuals has two alleles, A and a. The frequency of the A allele equals the frequency of the a allele. What are the expected genotype frequencies, assuming the population is in Hardy-Weinberg equilibrium? AA = 0.5, aa = 0.5 AA = 0.25, Aa = 0.50, aa = 0.25 O A = 0.5, a = 0.5 The answer cannot be determined because the allele frequencies are not provided.
1. Fixation of Dominant Alleles Start with a population that has a gene with two alleles (A and a) with classical Mendelian dominance that are at equal frequency (p0.5. q 0.5). Assume this first generation is at hardy Weinberg equilibrium. Calculate the genotype frequencies AA- a. Aa b. Now assume some environmental change that makes the recessive phenotype completely unfit (fitness- 0). Calculate the allele frequencies and genotype frequencies in the second generation. (Hint: Your calculations might be easier if...
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