Population Genetics Homework, Bio 358 Name: _____________________________________________20 points.

Population Genetics Homework, Bio 358 Name: _____________________________________________20 points. This is meant to be your own, individualwork, not group work.1) Hardy-Weinberg practice. You have a population with 5 aa individuals, 4 Aa individuals,and 2 AA individuals.a) What are the allele frequencies and genotype frequencies for this population? b) Is this population at HW equilibrium? Use numbers to explain why or why not. c) If this population continues with about 10 individuals per generation, and thereisn’t strong selection or much migration, what can you predict about what will happen toallele frequencies and genotype frequencies over the next 100 generations? Justify yourprediction. 2) You have populations under Hardy-Weinberg equilibrium for a trait controlled by allelesR (dominant for red) and r (recessive for white). Individuals with RR or Rr are red, and rrindividuals are white. Consider all the populations and phenotypes you might have, basedon different starting allele frequencies. If all these populations, regardless of starting allelefrequencies, are under HW equilibrium, what predictions can you make about whichphenotype will be most common? 3) In organisms with two sexes, when males are common, females have the reproductiveadvantage, because they have more mates to choose from, and they have the maximumnumber of offspring. If females are more common and males are rare, then males have theadvantage, because they have more mates to choose from, and they have the maximumnumber of offspring. Over time, what should happen to the ratio of males vs. females in thepopulation? What kind of selection would control this? Explain why/how. 5) You have a trait controlled by two alleles: A, a. Individuals with the aa (recessive) traithave a slight fitness advantage over AA or Aa individuals. For selection to have the quickesteffect on allele frequencies, what population should you start with: 100 Aa individuals; 50AA and 50 aa; 25 aa, 50 Aa, 25 AA; or will all populations act the same? Why? Explain. 4) Complete the table below. Assume you have two populations with two alleles for onegene: A, a. Both gene pools are 50% A and 50% a. You start with all Aa individuals. Predictthe outcome after 100 generations if each of the processes below is the only thinghappening at the time. If something is unpredictable, you can say so.PROCESS Drift Mutation Migration (in &out)Directionalselection (onephenotype doesbest)Overdominance(heterozygoteadvantage) Final allelefrequencies?(keep both? oneup? one lost?) Final genotypefrequencies?(Most common?Least common?) Variety of allelesin onepopulation (up,down, stayssame) Will the twopopulations bemore differentor more similar?