Homework Answers
N= total no. Of rats.(100+60+40 ) = 200
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In rats, pattern of coat color is controlled by a gene with two alleles. P is...
4. A population has two alleles at the height locus. The Tallele is form the tail...
4. A population has two alleles at the height locus. The Tallele is form the tail ons short trait. T is dominant to t. The frequency of the tall phenotype is found to frequency of the short phenotype is found to be 0.64 (64%). Assuming the pop Weinberg Equilibrium, what are the values for p (frequency of the T alle t allele)? Give an actual number. Space for calculations ne i allele is form the tall trait, and the t...
Fruit flies have incomplete dominance in regards to eye color, where... red-eyed= RR, orange-eyed= Rr, and...
Fruit flies have incomplete dominance in regards to eye color, where... red-eyed= RR, orange-eyed= Rr, and white-eyed= rr Evaluate the population... 42= red, 6=orange, and 52= white a.) What are the observed frequencies of the phenotypes? red=______ orange=______ white=________ b.) Find the proportion of R alleles (p) as well as the proportion of r alleles (q). Show work. c.) Assuming Hardy-Weinberg equilibrium, what are the predicted frequencies of the phenotypes? red=_____ orange=______ white=________ d.) What phenomenon best describes the deviation...
Fruit flies have incomplete dominance in regards to eye color, where... red-eyed= RR, orange-eyed= Rr, and...
Fruit flies have incomplete dominance in regards to eye color, where... red-eyed= RR, orange-eyed= Rr, and white-eyed= rr Evaluate the population... 42= red, 6=orange, and 52= white a.) What are the observed frequencies of the phenotypes? red=______ orange=______ white=________ b.) Find the proportion of R alleles (p) as well as the proportion of r alleles (q). Show work. c.) Assuming Hardy-Weinberg equilibrium, what are the predicted frequencies of the phenotypes? red=_____ orange=______ white=________ d.) What phenomenon best describes the deviation...
5. Pretend that the trait for shiny coat color in dogs is controlled by a simple...
5. Pretend that the trait for shiny coat color in dogs is controlled by a simple dominant and recessive relationship at one locus. Shiny coat color (H) is dominant to dull coat color (h). In an animal shelter, the shelter workers take a tally of dogs with shiny coats and those with dull coats. Of the 153 dogs, 88 have shiny coats. Assuming the dogs are in Hardy-Weinberg equilibrium for this trait, find the frequency of the dominant allele H...
The coat color in mink is controlled by two codominant alleles at a single locus. Red...
The coat color in mink is controlled by two codominant alleles at a single locus. Red coat color is produced by the genotype R Rı, silver coat by the genotype R1 R2, and platinum color by R2R2. White spotting of the coat is a recessive trait found with the genotype ss. Solid coat color is found with the S-genotype. What is the expected phenotype distribution for the cross SsRį R2 X ssR2R2? Express your answer as four numbers separated by...
Consider a population with two autosomal alleles A, a, in Hardy-Weinberg equilibrium Let p and q...
Consider a population with two autosomal alleles A, a, in Hardy-Weinberg equilibrium Let p and q be the allele frequencies of A and a, respectively 5. For what values ofp does the population contain more heterozygotes than any other genotype? Show all your working
Question1 2 pts A population of ferrets with a neutral allele F governing coat color. F shows incomplete dominance such that FF ferrets are black, Ff ferrets are grey, and ff ferrets are white. They...
Question1 2 pts A population of ferrets with a neutral allele F governing coat color. F shows incomplete dominance such that FF ferrets are black, Ff ferrets are grey, and ff ferrets are white. They migrate from the mainland, where the F allele is at an abundance of 50%, to three islands. These islands differ in size one small, one medium-sized, and one large. The larger islands can support more ferrets. A stable population of 50 ferrets lives on the...
2. Alleles D and L are codominant alleles that define fur color in Madagascar lemurs. Lemurs...
2. Alleles D and L are codominant alleles that define fur color in Madagascar lemurs. Lemurs that are homozygous for allele D (genotype DD) have dark brown fur. Lemurs that are homozygous for the L allele (genotype LL) have very light brown fur. The DL heterozygotes are generally light brown, but they have a dark patch or a collar around their neck. Among the 600 Lemurs that you studied on Madagascar, the distribution of genotypes was as follows: Dark brown...
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...
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...
4. A population has two alleles at the height locus. The Tallele is form the tail ons short trait. T is dominant to t. The frequency of the tall phenotype is found to frequency of the short phenotype is found to be 0.64 (64%). Assuming the pop Weinberg Equilibrium, what are the values for p (frequency of the T alle t allele)? Give an actual number. Space for calculations ne i allele is form the tall trait, and the t...
5. Pretend that the trait for shiny coat color in dogs is controlled by a simple dominant and recessive relationship at one locus. Shiny coat color (H) is dominant to dull coat color (h). In an animal shelter, the shelter workers take a tally of dogs with shiny coats and those with dull coats. Of the 153 dogs, 88 have shiny coats. Assuming the dogs are in Hardy-Weinberg equilibrium for this trait, find the frequency of the dominant allele H...
The coat color in mink is controlled by two codominant alleles at a single locus. Red coat color is produced by the genotype R Rı, silver coat by the genotype R1 R2, and platinum color by R2R2. White spotting of the coat is a recessive trait found with the genotype ss. Solid coat color is found with the S-genotype. What is the expected phenotype distribution for the cross SsRį R2 X ssR2R2? Express your answer as four numbers separated by...
Consider a population with two autosomal alleles A, a, in Hardy-Weinberg equilibrium Let p and q be the allele frequencies of A and a, respectively 5. For what values ofp does the population contain more heterozygotes than any other genotype? Show all your working
Question1 2 pts A population of ferrets with a neutral allele F governing coat color. F shows incomplete dominance such that FF ferrets are black, Ff ferrets are grey, and ff ferrets are white. They migrate from the mainland, where the F allele is at an abundance of 50%, to three islands. These islands differ in size one small, one medium-sized, and one large. The larger islands can support more ferrets. A stable population of 50 ferrets lives on the...
2. Alleles D and L are codominant alleles that define fur color in Madagascar lemurs. Lemurs that are homozygous for allele D (genotype DD) have dark brown fur. Lemurs that are homozygous for the L allele (genotype LL) have very light brown fur. The DL heterozygotes are generally light brown, but they have a dark patch or a collar around their neck. Among the 600 Lemurs that you studied on Madagascar, the distribution of genotypes was as follows: Dark brown...
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...
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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