In gerbils, coat color is controlled by the agouti gene, in which the agouti allele (A) is dominant to the black allele (a). Additionally, coat pattern is controlled by the piebald gene, where the solid allele (S) is dominant to the piebald allele (s). Both genes are located on separate chromosomes. Consider a dihybrid cross between two solid agouti gerbils (AaSs x AaSs). Sort the gerbil phenotypes according to the 9:3:3:1 ratio one would expect to see in the F1 generation.

In a population of rabbits, black fur (B) is dominant over white fur (b). A cross between true-breeding black-furred and white-furred rabbits results in an F1 generation where all offspring have black fur. The F1 rabbits are allowed to mate randomly, producing an F2 generation. In a randomly selected group of 100 rabbits from the F2 generation, you observe 75 black-furred rabbits and 25 white-furred rabbits. What is the observed frequency of the recessive allele in this F2 population? Select the right answer and show your work on your scratch paper for full credit.

Coat color in mice is controlled by the interaction of two genes: Gene #1: The black coat color allele (B) is dominant over the brown coat color allele (b). Gene #2: Expression of coat color allele (C) is dominant over masking of coat color allele (c). Genotypes CC and Cc enable the expression of coat color, and the genotype cc will mask the expression of coat color, resulting in a white mouse.  What is the expected phenotypic ratio (Black: Brown: White) that results from a cross between two black mice heterozygous for both genes?  Select the right answer and show your work on your scratch paper for full credit.

What is the expected probability of a double crossover event between genes A, B, and C shown below?  Select the right answer and show your work on your scratch paper for full credit.

Organisms that are diploid have two homologous copies of each chromosome.

Plot the acceleration of the microorganism as a function of time over the entire 7 seconds. Be sure to label both axes. Upload your scratch paper with the answer to Gradescope with the remaining of the exam after the 60 minute period. 

The testing for Type III HS reactions primary involve which of the following: 

Anti-DNA antibody is associated with

The cause of insulin-dependent diabetes mellitus is

Which of the following laboratory assays is not utilized in the diagnosis of RA?