1) In smurfs, blue tails are dominant to red tails. You observe the following distribution in a smurf population: 214 blue tailed individuals genotype BB 37 blue tailed individuals genotype Bb 19 red tailed individuals genotype bb Is this population in HW equilibrium for the blue tail gene? Show your work. If the population is not in HW equilibrium, what might me causing the disequilibrium?

1) In smurfs, blue tails are dominant to red tails. You observe the following distribution in a smurf population: 214 blue tailed individuals genotype BB 37 blue tailed individuals genotype Bb 19 red tailed individuals genotype bb Is this population in HW equilibrium for the blue tail gene? Show your work. If the population is not in HW equilibrium, what might me causing the disequilibrium?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter19: Population Genetics And Human Evolution

Section: Chapter Questions

Problem 2QP: How Can We Measure Allele Frequencies in Populations? The MN blood group is a single-gene,...

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How Can We Measure Allele Frequencies in Populations? The MN blood group is a single-gene, two-allele system in which each allele is codominant. Why are such codominant alleles ideal for studies of allele frequencies in a population?
A species of fox may be brown (the dominant phenotype) or white (the recessive phenotype). Brown foxes have the genotype BB or Bb. White foxes have the genotype bb. The frequency in a population of foxes of the BB genotype is 0.27. A. How can we test if this population is operating under Hardy-Weinberg Equilibrium? B. Assuming that this population is operating under HWE, calculate the following: What is the frequency of the B allele in this population? What is the frequency of the b allele in this population? What is the frequency of heterozygous foxes in this population?
10,000 individuals are sampled from a population and are found to display one of three blood types: AA with 6800 individuals, AB with 2800 individuals and type BB with 400 individuals. a) If the next generation contains 25,000 individuals, how many would have blood type BB, assuming the population is in Hardy-Weinberg Equilibrium?
If the frequency of allele b is 0.3 for a population in Hardy-Weinberg equilibrium, what percentage of that population would you expect to be BB, Bb, and bb?
In a dense forest, a population of squirrels has been observed for their fur color. The fur color is determined by a single gene with two alleles: B (black) and b (brown). In a sample of 100 squirrels, you observed 30 black (BB), 50 black-brown (Bb), and 20 brown (bb) individuals. Determine if this population is in Hardy-Weinberg equilibrium and show your work.
A sample of 100 individuals from a population that is dimorphic at the A locus has genotype counts as follows. AA: 30 Aa: 60 aa: 10 a) What are the allele frequencies in the population? b) What are the expected genotype frequencies, if the population were at HardyWeinberg equilibrium? c) Is the proportion of heterozygotes lower or higher than expected at Hardy-Weinberg equilibrium? What deviations from the assumptions of the model would best explain the observed difference?
A hypothetical population of 10,000 humans has 6848 individuals with the blood type AA, 2846 individuals with blood type AB, and 306 individuals with the blood type BB. What is the frequency of each genotype in this population? What is the frequency of the A allele? What is the frequency of the B allele? If the next generation contained 25,000 individuals, how many individuals would have blood type BB, assuming the population is in Hardy-Weinberg equilibrium?
In a certain population of frogs, 120 are green, 60 are brownish green, and 20 are brown. The allele for brown is denoted GB, and the allele for green is designated GG. These two alleles are incompletely dominant to each other. If this population were in Hardy-Weinberg equilibrium, how many green frogs would you expect to observe? (Remember to multiply the expected frequency by the number of frogs in the population.)
Given below are the genotypic frequencies for a single gene with two alleles for threedifferent populations. AA Aa aaPopulation 1 0.25 0.50 0.25Population 2 0.35 0.56 0.09Population 3 0.49 0.42 0.09 Which of the following is/are NOT correct about these three populations? a. Only two of the populations are in Hardy-Weinberg equilibrium. b. Population 2 is not in Hardy-Weinberg equilibrium; the frequency of allele a is 0.37. c. One must assume Hardy-Weinberg equilibrium to calculate the allele frequencies. d. Population 1 is in Hardy-Weinberg equilibrium; the frequency of allele A is 0.5.
In smurfs, blue tails and red tails are codominant to white tails (this is similar to blood type in humans). In a population of 200 smurfs, 6 have white tails, 93 have blue tails, 51 have red tails, and 50 have purple tails. Papa smurf has learned that the frequency of the blue tail allele is 0.53. Is this population in Hardy-Weinberg Equilibrium? Be sure to do a Chi-square test and show your work.
A population with an allele frequency (p) of 0.5 anda genotype frequency (p2) of 0.25 is at equilibrium.How can you explain the fact that a population withan allele frequency (p) of 0.1 and a genotype frequency (p2) of 0.01 is also at equilibrium?
About 70 percent of all Caucasians can taste the chemical phenylthiocarbamide, and the remainder cannot. The ability to taste this chemical is determined by the dominant allele T, and the inability to taste is determined by the recessive allele t. If the population is assumed to be in Hardy-Weinberg equilibrium, what is the heterozygotes frequency in this population? a. 0.7 b. 0.4 c. 0.2 d. 0.5