frequencies for a single gene with two alleles for three different populations. AA Aa aa Population 1 0.25 0.50 0.25 Population 2 0.35 0.56 0.09 Population 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

frequencies for a single gene with two alleles for three different populations. AA Aa aa Population 1 0.25 0.50 0.25 Population 2 0.35 0.56 0.09 Population 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

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 7QP: How Can We Measure Allele Frequencies in Populations? Drawing on your newly acquired understanding...

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Consider a sample of 100 individuals sampled from a population in Hardy-Weinberg equilibrium that are genotyped at a single locus. Of these 100 individuals, 25 individuals are A¡A1, 45 are A1A2, and 30 are A2A2. What is the actual (observed) allele frequency of the A1 allele in this sample? (you may use a calculator if needed) O A. 0.325 O B. 0.275 O C. 0.475 O D. 0.525
You are investigating the gene for eye color in a population of Hawaiian Drosophila flies that is in a Hardy-Weinberg equilibrium. You then discover that the frequency of allele E in this population is 0.45. What are the expected genotype frequencies in this population? O A. EE = 0.55, Ee = 0.0, ee = 0.45 B. EE = 0.2025, Ee = 0.495, ee = 0.3025 %3| C. EE = 0.2025, Ee = 0.525, ee = 0.3025 D. EE = 0.3025, Ee 0.149, ee = 0.2025 %3D %3D Reset Selection
Last year you sampled a population of asters in the Rochester area and the allele frequencies for one locus (region of the genome) were p=0.7, q=0.3. Assuming that the population is in Hardy-Weinberg Equilibrium with respect to that locus, which of the following would you expect when sampling this year? a. 42% of the asters are expected to be homozygous dominant. b. 91% of the asters are expected to be heterozygous. c. 9% of the asters are expected to be homozygous recessive. d. 53% of the asters are expected to be heterozygous.
The relative fitness values of three genotypes are wA/A =1.0, wA/a = 1.0, and wa/a = 0.7.a. If the population starts at the allele frequency p =0.5, what is the value of p in the next generation?b. What is the predicted equilibrium allele frequency ifthe rate of mutation of A to a is 2 × 10−5?
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?
Given below are the genotypic frequencies for a single gene with two alleles for three different populations (#1, #2, and #3). A/A A/a ala 0.25 0.50 0.25 # 2 # 3 0.35 0.56 0.09 0.49 0.42 0.09 Which of the following is incorrect about these three populations? Population 1 is in Hardy-Weinberg equilibrium; the frequency of allele A is 0.5. O Two of the populations are not in Hardy-Weinberg equilibrium. Population 3 is in Hardy-Weinberg equilibrium; the frequency of allele a is 0.3. Population 2 is not in Hardy-Weinberg equilibrium; the frequency of allele a is 0.37. %23
Which of the following populations is not in Hardy-Weinberg equilibrium? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a. A population with 23 homozygous recessive individuals (yy), 7 homozygous dominant individuals (YY), and 4 heterozygous individuals (Yy) b. A population that receives new individuals from a normally distant population. c. q + p = 1 d. A population in which the allele frequencies do not change over time
This Punnett square shows allele combinations for all possible genetic crosses in the wildflower population described in Part A. CR E p= 0.7 CW q= 0.3 p= 0.7 ? CW CR CR CR CW q= 0.3 ? ? CR CW CW CW ? What are the expected genotype frequencies in the offspring generation? O 0.49 CRCR (red flowers), 0.42 CRCW (pink flowers), 0.09 CWCW (white flowers) 0.49 CRCR (red flowers), 0.21 CRCW (pink flowers), 0.30 CWCW (white flowers) O 0.09 CRCR (red flowers), 0.21 CRCW (pink flowers), 0.42 CWCW (white flowers) 0.09 CRCR (red flowers), 0.42 CRCW (pink flowers), 0.09 CWCW (white flowers)
Below are individuals in a population broken down by genotype. (A) Complete the table AA Aa aa Total # individuals 305 650 55 # A alleles # a alleles (B) Determine the frequency of alleles A and a. Show your work. (C) Assuming the population is in Hardy-Weinberg equilibrium, determine the number of heterozygous individuals in the next generation with a population of 1200.
A population of wild roses has the following genotype frequencies for presence/absence of thorns: TT = 0.6 (large thorns), Tt = 0.2 (small thorns), tt = 0.2 (no thorns). What are the expected genotype frequencies for this gene in this population, and is this population currently in Hardy-Weinberg equilibrium? TT = 0.6, Tt = 0.2, tt = 0.2; in equilibrium TT = 0.49, Tt = 0.42, tt = 0.09; in equilibrium TT = 0.6, Tt = 0.2, tt = 0.2; not in equilibrium TT = 0.49, Tt = 0.42, tt = 0.09; not in equilibrium
A mouse mutation with incomplete dominance (t =tailless) causes short tails in heterozygotes (t+/t). Thesame mutation acts as a recessive lethal that causeshomozygotes (t/t) to die in utero. In a populationconsisting of 150 mice, 60 are t+/t+ and 90 areheterozygotes.a. What are the allele frequencies in this population?b. Given that there is random mating among mice, nomigration, and no mutation, and ignoring the effects of random genetic drift, what are the expectednumbers of the different genotypes in this nextgeneration if 200 offspring are born?c. Two populations (called Pop 1 and Pop 2) of micecome into contact and interbreed randomly. Thesepopulations initially are composed of the followingnumbers of wild-type (t+/t+) homozygotes andtailless (t+/t) heterozygotes:Pop 1 Pop 2Wild type 16 48Tailless 48 36What are the frequencies of the two genotypes in thenext generation?
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?