Homework Answers
a)Frequency of A allele is 6,000/ 20,000 is 0.3 = p
Number of individuals AA is 2000 and number of A alleles is 4,000 and in
Number of individuals Aa is 2000 and number of A alleles is 2000 and
Total is 6,000 and number of a alleles is 2,000 and 12,000 and total is 14,000
Hence frequency of a allele is 14,000/ 20,000 is 0.7=p
b)The founder population is not in equilibrium
Frequency of AA should be 0.3 x 0.3 =0.09
Frequency of Aa should be 2 x 0.3 x 0.7 = 0.42
Frequency of aa should be 0.7 x0.7 =0.49
For 10,000 individuals , number of individuals should be900 AA,4200 Aa, 4900 aa
Hence not in equilibrium.
c) Yes, the second genration is in equilibrium.
d)Given the condition of random mating, selectively neutral alleles, no new mutations, allele frequencies do not change from one generation to the other, p= 0.3 and q = 0.7.
e) The genotype frequencies would be the same calculated as in part b because in one genration will go to equilibrium.
f)The genotype frequencies will be the same as in every generation as it is in equilibrium.
Add Answer to:
a through f
Sample Problem # 2 1. A population called the "founder generation consisting of...
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,...
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. 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...
Help is 4?? b. A founder event, using the founder event as the reference generation and...
Help is 4??
b. A founder event, using the founder event as the reference generation and calculating the effective sizes 10 generations later, during which time the population grew at a rapid rate. (4 pts) c. A steadily declining population size? (4 pts) 4. Given the following allele frequencies for a locus with two alleles (A and a), with p being the frequency of the A allele), and inbreeding coefficients f (measured as the deviation from Hardy-Weinberg proportions), calculate the...
6.) Suppose that alleles A, B and C occur with frequencies 0.5, 0.25 and 0.25 in a randomly- mati...
6.) Suppose that alleles A, B and C occur with frequencies 0.5, 0.25 and 0.25 in a randomly- mating population at Hardy-Weinberg equilibrium (a) Calculate the frequencies of the diploid genotypes. (b) Suppose that individuals M and F have genotypes AB and BC, respectively. If they have a child cl, find the distribution, the mean and the variance of the number of B alleles that this child inherits.
6.) Suppose that alleles A, B and C occur with frequencies 0.5,...
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.
Please give detailed and precise explanation especially for parts b and c E11. In a donor...
Please give detailed and precise explanation
especially for parts b and c
E11. In a donor population, the allele frequencies for the common (HbA) and sickle cell (Hb) alleles are 0.9 and 0.1, respectively. A group of 550 individuals from this population migrates to another popu- lation containing 10,000 individuals; in the recipient population, the allele frequencies are Hb-0.99 and Hb-0.01. A. Calculate the allele frequencies in the conglomerate population. B. Assuming the donor and recipient populations are each in...
2.3 Problem 3 The Hardy-Weinberg equation is useful for predicting the percent of a hu- man...
2.3 Problem 3 The Hardy-Weinberg equation is useful for predicting the percent of a hu- man population that may be heterozygous carriers of recessive alleles for certain genetic diseases. Phenylketonuria (PKU) is a human metabolic dis- order that results in mental retardation if it is untreated in infancy. In the United States, one out of approximately 10.000 babies is born with the disor- der. Approximately what percent of the population are heterozygous carriers of the recessive PKU allele? If you...
The Hardy-Weinberg principle and its equations predict that frequencies of alleles and genotypes remain constant from generation to generation in populations that are not evolving
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In a large random mating population of plants, 16,800 individuals express the phenotype of the do...
In a large random mating population of plants, 16,800 individuals express the phenotype of the dominant allele (genotypes AA and Aa) and 3200 express the phenotype of the recessive allele (genotype aa). a. What are the frequencies of the two alleles in this population? b. How many plants would be expected to heterozygous? c. You decide to select for the recessive phenotype and pull up 50% of the plants expressing the dominant phenotype. What will be the gene frequencies of...
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,...
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...
Help is 4??
b. A founder event, using the founder event as the reference generation and calculating the effective sizes 10 generations later, during which time the population grew at a rapid rate. (4 pts) c. A steadily declining population size? (4 pts) 4. Given the following allele frequencies for a locus with two alleles (A and a), with p being the frequency of the A allele), and inbreeding coefficients f (measured as the deviation from Hardy-Weinberg proportions), calculate the...
6.) Suppose that alleles A, B and C occur with frequencies 0.5, 0.25 and 0.25 in a randomly- mating population at Hardy-Weinberg equilibrium (a) Calculate the frequencies of the diploid genotypes. (b) Suppose that individuals M and F have genotypes AB and BC, respectively. If they have a child cl, find the distribution, the mean and the variance of the number of B alleles that this child inherits.
6.) Suppose that alleles A, B and C occur with frequencies 0.5,...
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.
Please give detailed and precise explanation
especially for parts b and c
E11. In a donor population, the allele frequencies for the common (HbA) and sickle cell (Hb) alleles are 0.9 and 0.1, respectively. A group of 550 individuals from this population migrates to another popu- lation containing 10,000 individuals; in the recipient population, the allele frequencies are Hb-0.99 and Hb-0.01. A. Calculate the allele frequencies in the conglomerate population. B. Assuming the donor and recipient populations are each in...
2.3 Problem 3 The Hardy-Weinberg equation is useful for predicting the percent of a hu- man population that may be heterozygous carriers of recessive alleles for certain genetic diseases. Phenylketonuria (PKU) is a human metabolic dis- order that results in mental retardation if it is untreated in infancy. In the United States, one out of approximately 10.000 babies is born with the disor- der. Approximately what percent of the population are heterozygous carriers of the recessive PKU allele? If you...
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