A wound does not heal easily. It is:

Middle adulthood is from about age:

Before shaving a man’s face with a safety razor, you need to do which of the following?

Which statement about older persons is correct?

response method is most useful for answering behavioral interview questions?

The following question will only be shown in the actual exam, so it is important to collect all the data/information before submitting/disconnecting from your exam. NOTE: The essay question will be graded separately and it is worth 20 points. Complete your work on a blank piece of paper. You will have 30 minutes after you finish your test to finish and submit all the answers for this question and the calculations to the indicated multiple choice questions to the “Exam 2 Part 2” assignment on the “Exams” link. Submit BOTH SIDES of each paper as a single PDF file (preferred) or jpeg file. A population of freshwater snails called the founder generation is introduced into a pond. The population consists of 300 Black (SS) individuals, 400 Gray (Ss) individuals, and 300 White (ss) individuals. Assume the population mates randomly, the genotypes are selectively neutral, and mutation and migration are negligible. Questions: (a) What are the frequencies of alleles S and s in the founder generation? Show your calculations. (4 points). Frequency of allele S = __________________ Frequency of allele s = __________________ (b) Calculate p2, 2pq, q2 and the expected number of BB, Bb, and bb individuals in the population, assuming Hardy-Weinberg equilibrium (HWE). Show your calculations. Hint: use the p and q values you found above. (6 points). p2 = 2pq = q2 = Expected number Black (SS) = Expected number Gray (Ss) = Expected number White (ss) = Is the founder generation at Hardy-Weinberg equilibrium? Find ALL the values needed to complete the table below and write them down on your sheet. Last row can be left as fractions. The χ2 value was kindly provided by Dr. Holechek’s Grad TA. Hint: The expected frequencies and expected values are the ones you estimated in (b). (4 points, 0.25 per square). Observed and expected genotype counts by phenotype Phenotype Black Gray White Total Genotype SS Ss ss – Observed 300 400 300 Observed Frequency Expected Frequency Expected (O − E)2 / E χ2 = 40   Use the provided χ2 table below to determine whether this population is in HWE at the B locus. (c) What is the P value that corresponds to this Chi-square (χ2) value? (1 point). ______________ (d) Is the population in HWE? Briefly explain your answer. (2 points). ___________________________________________ (e) Mention 3 reasons why most populations are not in Hardy-Weinberg equilibrium. (3 points). 1. 2. 3. Chi-square critical values by degrees of freedom (k) and probability (P) value k Probability (P) Value 0.99 0.975 0.95 0.90 0.10 0.05 0.025 0.01 1 0.000 0.001 0.004 0.016 2.706 3.841 5.024 6.635 2 0.020 0.051 0.103 0.211 4.605 5.991 7.378 9.210 3 0.115 0.216 0.352 0.584 6.251 7.815 9.348 11.34 4 0.297 0.484 0.711 1.064 7.779 9.488 11.14 13.28 5 0.554 0.831 1.145 1.610 9.236 11.07 12.83 15.09 6 0.872 1.237 1.635 2.204 10.64 12.59 14.45 16.81 7 1.239 1.690 2.167 2.833 12.02 14.07 16.01 18.48 8 1.646 2.180 2.733 3.490 13.36 15.51 17.54 20.09 9 2.088 2.700 3.325 4.168 14.68 16.92 19.02 21.67 10 2.558 3.247 3.940 4.865 15.99 18.31 20.48 23.21 Show both sides of each of the papers you used to the camera before submitting and exiting this part of the Exam. Do not forget to show your work for your questions on the scratch papers. You have up to 30 minutes to complete the essay question and submit your calculations and essay through Exam 2 Part 2.

What is the expected probability of a double crossover event between genes A, B, and C shown below?  Image Long Description A horizontal blue line with three points marked on it. Point A is on the left, point B is in the middle, and point C is on the right. The distance from A to B is labeled “10 cM” and the distance from B to C is labeled “25 cM”.   Select the right answer and show your work on your scratch paper for credit.

Mendel imagined that seed color in pea plants is influenced by a gene with two alleles, in which the allele for yellow seeds (G) is dominant over the allele for green seeds (g). What would Mendel predict the seed colors would be from a cross of a true-breeding green female plant with a heterozygous male plant?

You are researching a tree lizard population in Arizona and have found that the lizards’ leg length is controlled by a single gene, in which the dominant S1 allele and the recessive S2 allele code for short or long hind legs, respectively. The table below shows the current and expected future genotype frequencies in this population:   Tree Lizards in Arizona Genotype Current frequencies Expected future frequencies S1S1 0.705 0.690 S1S2 0.225 0.215 S2S2 0.070 0.095 Based on these numbers, which phenotype of tree lizards will be favored by natural selection if the environment doesn’t change in future generations? 

Which type of exposure therapy is typically avoided when treating phobia due to the treatment potentially causing more distress than the phobia itself? _______