Exercise 3_KEY_FINAL_2013_6FEb

The alleles are in disequilibrium because ld is 0 one

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: tern? The alleles are in disequilibrium because LD is > 0. One mechanism is that the two allelic configurations are beneficial from a fitness perspective. 3. The effective population size of a diploid deer species is 20,000 individuals. All deer have genotype X until a mutation (XY) occurs, giving one copy of Y in this individual, so they are XY. Alleles confer equivalent fitness. a. What is the probability that Y will be fixed? Using the equation 1/(2N) = 1/(40,000) = 0.000025 b. How long will it take Y to become fixed on average (include units)? Using the equation t=4N, it will take 80,000 generations. c. The same mutation occurs in a haploid population of 3,000 deer. What is the probability that Y will be fixed? Use 1/(2N), but since the population is haploid, do not double the population size (so 1/N) = 1/3,000 = 0.00033 d. In the haploid population, how long will it take to fix Y on average (include units)? Remember that in this particular example, this organism is haploid. Use t=4N, but halve it because it is haploid = (2*3000) = 6000 generations (or years) 4. The Galapagos hawk has a polyandrous (one female, many male) mating system, in which a single female controls a harem of males and is the sole mother of all babies in that social group, which can contain up to 8 males, but there is only a single baby produced in...
View Full Document

This note was uploaded on 02/02/2014 for the course ECOL 335 taught by Professor Reinthal during the Spring '10 term at University of Arizona- Tucson.

Ask a homework question - tutors are online