Question

QUESTION 2 Crossing true breeding dark-coated sheep with true breeding light-coated sheep always results in 100% dark-coated offspring. You are screening a population of 300 Soay sheep for coat color, and you count 224 dark sheep and 76 light sheep. What is the genotype frequency of the homozygous recessive sheep for TYRP1 gene if the population is in Hardy-Weinberg equilibrium? a. 0.747 b. 0.253 c. 0.864 d. 0.503 1 points

QUESTION 3 In the same population, if it is under Hardy-Weinberg equilibrium, how many individuals do you expect to be heterozygous at TYRP1? a. 150 b. 0.500 c. 261 d. 75 1 points

QUESTION 4 Rabbit’s ears can be either short (dominant) or floppy (recessive). If a population of rabbits in Hardy-Weinberg equilibrium has 250 short eared rabbits and 100 floppy eared rabbits, what is the allele frequency of the “short” allele? a. 0.714 b. 0.465 c. 0.845 d. 0.535 1 points

QUESTION 5 You are observing the suit (clubs, diamonds, hearts, or spades) of a randomly drawn card from a deck. What is the degree(s) of freedom if you were to perform the Chi-square test on the expected and observed outcome of the suits of the cards? a. 1 b. 0 c. 3 d. 4 1 points

QUESTION 6 You perform a Chi-square test for gene X and find the p-value to be between 0.05 and 0.01. What can you say with 95% certainty about this population? a. This population is in Hardy-Weinberg equilibrium at the X locus: gene X is influenced by at least one force of evolution. b. This population is in Hardy-Weinberg equilibrium at the X locus: gene X is not influenced by any forces of evolution. c. This population is not in Hardy-Weinberg equilibrium at the X locus: gene X is influenced by at least one force of evolution. d. This population is not in Hardy-Weinberg equilibrium at the X locus: gene X is not influenced by any forces of evolution.

Answer 1