Oculocutaneous albinism results from a mutation in one of several genes which codes for proteins important in the manufacturing of melanin. It is inherited via traditional Mendelian inheritance patterns in which normal melanin production is dominant and abnormal melanin production (or low/no melanin production) is recessive. Using the letters ‘A’ and ‘a’ to represent the 2 forms of this gene, complete the following. Show your work! You may use Punnett squares or probabilities.

1. What is the probability of a child having albinism when one parent has albinism and the other does not? Be sure to state both the expected genotype and phenotype ratios. (4pts)

2. What is the probability of a child having albinism if both parents are heterozygotes? Be sure to state both the genotype and phenotype ratios. (3pts)

4) In fruit fly (Drosophila melanogaster), grayish eye color and wingless bodies are caused by recessive genes located on different chromosomes. Red eyes (gr+) and normal wings (wl+) are dominant to gray eyes (gr) and wingless (wl), respectively. Suppose that a true-breeding male with gray eyes and normal wings is crossed with a true-breeding female with red eyes and wingless. a) What is the genotype and phenotype of the F1? b) If these F1 individuals were allowed to intermate, what would be the phenotypic ratio of the resulting F2 flies?

CO2 is removed from the body through the lungs in a process that is mediated by red blood cells, as summarized in the figure below. Transport of CO2 is coupled to the transport of O2 through hemoglobin.

-To what extent does the intracellular pH or the red blood cell vary during its movement from the tissues to the lungs and back, and why is this so?

-In what form, and where is the CO2 during its movement from the tissues of the body to the lungs?

-How is it that the CL-/HCO3- exchanger operates in one direction in tissues and in the opposite direction in the lungs?

Donna donates stock in Chipper Corporation to the American Red Cross on September 10, 2019. She purchased the stock for $23,450 on December 28, 2018, and it had a fair market value of $33,500 when she made the donation.

a. What is Donna’s charitable contribution deduction?
The stock is treated as   property and Donna's charitable contribution deduction is $ for tax purposes.

b. Assume instead that the stock had a fair market value of $20,100 (rather than $33,500) when it was donated to the American Red Cross. What is Donna’s charitable contribution deduction?
$

In a certain species of flower, the red allele for flower color (R) is completely dominant to the pink allele (r). A completely recessive allele (d) at a second gene on a different chromosome allows pigment (color) to be actually deposited within flowers; the lack of pigment results in white flowers. READ CAREFULLY!

(a) What is a possible genotype for a pink flower? ___ ___ ___ ___

(b) What is the probability that a flower that is heterozygous for both traits and a red flower (that had one pink parent) produce offspring that have white flowers? (SHOW BOTH PUNNETT SQUARES)

A transect is an archaeological study area that is  mile wide and 1 mile long. A site in a transect is the location of a significant archaeological find. Let x represent the number of sites per transect. In a section of Chaco Canyon, a large number of transects showed that x has a population variance . In a different section of Chaco Canyon, a random sample of 23 transects gave a sample variance  for the number of sites per transect. Use an  to test the claim that the variance in the new section is greater than 35.0. Find a 95% confidence interval for the population variance.

​

Find the requested confidence interval for the population variance. Interpret the results in the context of the application.

Choose the best one.

22.87 to 76.50

20.96 to 70.13

30.92 to 103.59

21.92 to 73.32

32.37 to 108.30

Singing Fish Fine Foods has

​$2,020,000

for capital investments this year and is considering two potential projects for the funds. Project 1 is updating the​ store's deli section for additional food service. The estimated​ after-tax cash flow of this project is

​$570,000

per year for the next five years. Project 2 is updating the​ store's wine section. The estimated annual​ after-tax cash flow for this project is

​$490,000

for the next six years. If the appropriate discount rate for the deli expansion is

9.6​%

and the appropriate discount rate for the wine section is

8.9​%,

use the NPV to determine which project Singing Fish should choose for the store. Adjust the NPV for unequal lives with the equivalent annual annuity. Does the decision​ change?