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.

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.

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.

Crossing true-breeding pea plants with yellow peas with true-breeding plants with green peas yielded an F1 generation with 100% offspring plants with yellow peas. The F1 plants are self-fertilized and produce F2. In a randomly selected set of 100 peas from F2 you notice the following phenotypic numbers: 84 yellow and 16 green.  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.

Crossing true-breeding pea plants with yellow peas with true-breeding plants with green peas yielded an F1 generation with 100% offspring plants with yellow peas. The F1 plants are self-fertilized and produce F2. In a randomly selected set of 100 peas from F2 you notice the following phenotypic numbers: 84 yellow and 16 green.  What is the observed frequency of the dominant allele in this F2 population? Select the right answer and show your work on your scratch paper for full credit.

In a study of flower color in a population of true-breeding red-flowered and white-flowered plants, the red color is dominant, and white is recessive. Crossing true-breeding red-flowered plants with true-breeding white-flowered plants results in an F1 generation where 100% of the offspring have red flowers. The F1 plants are self-fertilized to produce an F2 generation. In a randomly selected set of 100 flowers from the F2 generation, you observe 75 red-flowered plants and 25 white-flowered plants. What is the observed frequency of the dominant allele in this F2 population? Select the right answer and show your work on your scratch paper for full credit.

Plot the velocity 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. 

A river flows east at 2 m/s, and wind drifts a pollutant south at 1 m/s. Draw the vector diagram representing this movement. Upload your scratch paper with the answer to Gradescope with the remaining of the exam after the 60 minute period.

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. 

A syngraft is a: