In a population there are 407 individuals that are AA, 164 individuals that are Aa and 655 individuals that are aa. What is the total number of alleles present in this population?

answer

watching

views

For unlimited access to Homework Help, a Homework+ subscription is required.

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

Jamar FerryLv2

28 Sep 2019

Unlock all answers

Get 1 free homework help answer.

Already have an account? Log in

Related questions

A Lebanese population of 1,000 members is tested for the autosomal recessive disease phenylketonuria (PKU). The testing results are shown here: AA 660

Aa 280

aa 60

a. Calculate the frequencies of the wild type allele and the PKU allele in this population.

b. What are the expected numbers of individuals of each genotypic class (i.e., AA, Aa, and aa) in this population? Assume Hardy-Weinberg conditions. c. Use the chi-squared test to determine if these data fit the Hardy-Weinberg equilibrium model. The degrees of freedom for this test should be 1. Why is this appropriate?

1.Did either allele A or a disappear from the population youstudied? Why or why not?
2. Did the effect of natural selection vary with different startingallele frequencies in identical environments? Why or why not?
3. A population in which the frequency of alleles remains the sameover generations is said to be in genetic equilibrium. Describe onemechanism by which a populations' genetic equilibrium can bedisrupted and result in the process of evolution.
4. In which of the simulated environments do individuals of thegenotype Aa survive best?
5. In which of the simulated environments do individuals of thegenotype aa survive best?
6. Which set of data represents a type of natural selection thatstabilizes the allele frequencies of the population?
These are my lab questions & this is the labsite:/www.mhhe.com/biosci/genbio/virtual_labs/BL_12/BL_12.html

blushgnu391

II think this is a pretty basic Hardy-Weinberg Problem, I justdon;t know how to solve it yet. Thank you for your help!

Assume a population of 800 individuals with the followinggenotypes:452 AA, 296 Aa, and 52 aa. This is the 1stgeneration.

a. Calculate the frequencies for A___ and a___. Do this fromgenotype frequencies (do NOT assume Hardy Weinberg Equilibrium)

b. Use the allele frequencies from part a to calculate theexpected genotype frequencies for AA___ Aa___ and aa__

c. Based on your allele frequencies above, how many of eachgenotype would you expect if the population of 800 people were inHardy-Weinberg Equilibrium? AA____ Aa____aa____

d. Suppose that the original population (452 AA; 296 Aa; 52 aa)experienced an epidemic of an infectious disease that kills 75% ofeach homzygous class ( AA and aa). and 25% of the heterozygotes.How many of each genotype would survive?

e. The results of part e are still the first generation, butpost-epidemic survivors. What are the new allele frequencies?

f. Assume the 1st generation post-epidemic survivors materandomly, and there is no selection, no migration, no mutation, nogenetic drift. What frequency of each genotype is expected in the2nd generation?

g. If the 2nd generation contains 350 indivduals how many ofeach genotype do you expect?