Question

14) According to a recent study, 1 out of 50,000 people will be diagnosed with cystic fibrosis.  Cystic fibrosis can be caused by a mutant form of the CFTR gene (dominant gene symbol is F and mutant is f).  What is the frequency of the f and F alleles? Calculate the frequency of carriers (i.e. Ff individuals)?

15) The relative fitnesses of three genotypes are w_A/A= 1.0, w_A/a = 0.4, and w_a/a = 0.5. If the population starts at the allele frequency p = 0.6, what is the value of p in the next generation?

16) In a population of Jackalopes (pictured to the right), horn length will vary between 0.5 and 2 feet, with the mean length somewhere around 1.05 feet.  You pick Jackalopes that have horn lengths around 1.92 feet to breed as this appears to be the optimal length for battling other Jackalopes for food. After a round of breeding, you measure the offsprings’ mean horn length is 1.46.  Calculate the narrow sense heritability.

Answer 1

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