A А В A B Environment Trait value Trait value Trait value Trait value B.

In a particular breed of dog, the following genotypes and their respective phenotypes are known: ● • lect one: A. The C¹ allele is the most dominant 3. The C3 allele is the most dominant The C2 allele combination is the most dominant C1, C², and C3 are codominant C'C' = black coat C'C² = black coat • C²C²= brown coat • ● C'C' =yellow coat C'C²=yellow coat C'C'=yellow coat Which of the following conclusions is supported by the information above?

You are studying a disorder that is based on the genetic cómposition at three loci. Assume that a dominant allele at any locus adds 7 units of risk for the disorder and that a recessive allele at any locus adds 4 units of risk for the disorder. Individuals with 26 or more units of risk develop the disorder. The environment does not affect the presence or absence of this disorder. How many risk units will be present in an individual of genotype AABbcc?

The following alleles exist in combs of chickens: Comb Shape Description Genotype Single Comb homozygous for both r and p rrpp Walnut comb both dominant alleles are present; R and P alleles are present R_P_ Pea comb the dominant allele P is present and the dominant allele R is absent rrP_ Rose comb the dominant allele R is present and the dominant allele P is absent R_pp Which of the following represents the correct phenotypes of the F2 offspring? Phenotype Single Walnut Pea Rose 3/16 9/16 1/16 3/16   b. Phenotype Single Walnut Pea Rose 1/16 9/16 3/16 3/16   c. Phenotype Single Walnut Pea Rose 3/16 1/16 9/16 3/16   d. Phenotype Single Walnut Pea Rose 9/16 3/16 3/16 1/16

Your dream has come true, you’re a marine biologist studying Narwhals in the arctic. They have been trying to understand the heritability of tusk length in this species. You are able to take measurements of them in the wild, and in an aquarium where they are treated well with temperature-controlled pools, and a standardized diet. Within the aquarium, there is no environmental variation. In the wild, the total variance was determined to be 10 feet. In the aquarium, total variance between subjects was found to be 3 fee     A-What is the heritability of tusk length in the wild? (Express the answer as a decimal with 2 places, ie .12)

Choose one answer.

80.

In Ayrshire cattle, the spotting of the animals can be either red and white or mahogany  and white. The mahogany and white phenotype is caused by the allele SM. The red and white  phenotype is controlled by the allele SR. The table below shows the relationship between  genotype and phenotype for males and females:

Choose a trait from the list above and describe if you are dominant or recessive for that trait. Do the same for your parents, alternatively, if you have children you can do this with your and your partner's traits and your child(ren), or you can choose a set of parents and children that you know as examples for this exercise. In your response be sure to list how both parents and their child(ren) are expressing the trait, what the potential GENOTYPES are for each individual. What are the possibilities for the parental pair based on their possible genotypes (hint: Punnet Square).

Please refer to the table below. If only data on the variances for F1, F2 and BC1 populations were available, how will the broad sense heritability estimate change? Show solutions.