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A population has a gene with two alleles, Aj and A2. The frequency of Aį equals...
Suppose that a single gene in a population has three alleles, or variants, A1, A2, and...
Suppose that a single gene in a population has three alleles, or variants, A1, A2, and A3. In a mating pair of birds, the male has alleles Aį and A2, and the female has alleles A and A3. AA2 А.Аз What is the probability that A3 will be passed to any offspring? probability probability
A gene in a population has two alleles, B1 and B2. The frequency of the B1...
A gene in a population has two alleles, B1 and B2. The frequency of the B1 allele equals 0.72. Calculate the expected frequency of the heterozygotes in the next generation. Express your answer to two decimal places. frequency of the heterozygotes:
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.
A gene has four alleles, A1, A2, A3, and A4. The alleles occur in a population...
A gene has four alleles, A1, A2, A3, and A4. The alleles occur in a population at the following frequencies: A1=0.2, A2=0.1, A3=0.4, A4=0.3. Compute the following: a) Probability that a single allele chosen at random is either A1 or A4 b) Probability than an individual as two A1 alleles c) Probability that an individual has one A1 and one A3 allele d) Probability that an individual is NOT A1A1 e) Probability that if we drew two individuals at random,...
The knobcone gene has two alleles that segregate within a population of loblolly pine. In this...
The knobcone gene has two alleles that segregate within a population of loblolly pine. In this population of loblolly pine, you observe two genotypes with frequencies of 0.75 and 0.25. The fitness of the genotype with a frequency of 0.75 is equal to 1.0, whereas the fitness of the other genotype is 0.8. What is the mean fitness at this locus within this population? Answer: The answer is 0.95. I'm not sure how to get there
In a population of mice, there are two alleles of the A locus (A1 and A2)....
In a population of mice, there are two alleles of the A locus (A1 and A2). Tests showed that in this population there are 300 mice of genotype A1A1, 200 of A1A2 and 250 of A2A2. What is the frequency of the A2 allele in the population? (enter as decimal- with zero & rounded to nearest hundredth)
In the figure, p is the frequency of allele A, and is the frequency of allele...
In the figure, p is the frequency of allele A, and is the frequency of allele a in a diploid population. Assuming no differences in fitness, pand should also be the frequencies of A gametes and a gametes produced by the adults. The A and a gametes combine during fertilization to produce diploid zygotes. If mating is random and the population is large, the proportion of offspring with each of three genotypes (AA, Aa, and aa) can be predicted using...
4. Say we have a population, with Ne = 100, containing two alleles, A1 and A2...
4. Say we have a population, with Ne = 100, containing two alleles, A1 and A2 at frequencies 0.6 and 0.4, respectively. We leave this population alone for 10000 generations (keeping its size constant), then come back to find that the allele frequencies are still 0.6 and 0.4. a) Explain why this would be evidence that selection is acting in this population. b) Which genotype would you expect to have the highest fitness in this case? Explain.
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...
Suppose a population of organisms is in Hardy–Weinberg equilibrium with respect to a gene that has...
Suppose 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 yy genotype has a frequency of 0.45. Calculate the frequency of each allele to two decimal places. Y allele frequency: y allele frequency:
Suppose that a single gene in a population has three alleles, or variants, A1, A2, and A3. In a mating pair of birds, the male has alleles Aį and A2, and the female has alleles A and A3. AA2 А.Аз What is the probability that A3 will be passed to any offspring? probability probability
A gene in a population has two alleles, B1 and B2. The frequency of the B1 allele equals 0.72. Calculate the expected frequency of the heterozygotes in the next generation. Express your answer to two decimal places. frequency of the heterozygotes:
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.
In the figure, p is the frequency of allele A, and is the frequency of allele a in a diploid population. Assuming no differences in fitness, pand should also be the frequencies of A gametes and a gametes produced by the adults. The A and a gametes combine during fertilization to produce diploid zygotes. If mating is random and the population is large, the proportion of offspring with each of three genotypes (AA, Aa, and aa) can be predicted using...
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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