Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 23, Problem 2TY
The Hardy-Weinberg equation characterizes the allele and genotype frequencies
- a. of a population that is experiencing selection for mating success.
- b. of a population that is extremely small.
- c. of a population that is very large and not evolving.
- d. of a community of species that is not evolving.
- e. of a community of species that is experiencing selection.
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High values for heterozygosity (or expected heterozygosity) at a genetic locus in a population indicates that there is:
a.
A lot of genetic variation
b.
Little genetic variation
c.
A population not under HW equilibrium
d.
A large amount of homozygosity
The Hardy-Weinberg theory can be applied only to a population
Select one:
a.
in which migration occures
b.
Where mutations occur
c.
that is large in size
d.
Where mating is nonrandom
Which of the following is/are assumptions made under the Hardy-Weinberg equilibrium principle?
A. Mutations are introduced into the gene pool at a regular frequency.
B. New alleles may be introduced to the population by migration.
C. Gametes combine at random.
D. The fittest individuals in a population are most likely to reproduce.
E. Allele frequencies change at random from one generation to the next.
Chapter 23 Solutions
Biology
Ch. 23.1 - Prob. 1CSCh. 23.2 - Prob. 1CCCh. 23.2 - Prob. 2CCCh. 23.2 - Prob. 3CCCh. 23.3 - Prob. 1CCCh. 23.3 - Prob. 1EQCh. 23.3 - Prob. 2EQCh. 23.3 - Prob. 3EQCh. 23.4 - Genetic Drift Concept Check: How does the...Ch. 23.4 - Prob. 1CS
Ch. 23.5 - Prob. 1CCCh. 23 - Population geneticists are interested in the...Ch. 23 - The Hardy-Weinberg equation characterizes the...Ch. 23 - Prob. 3TYCh. 23 - Prob. 4TYCh. 23 - Prob. 5TYCh. 23 - Prob. 6TYCh. 23 - Prob. 7TYCh. 23 - Prob. 8TYCh. 23 - Kimuras proposal regarding neutral variation...Ch. 23 - Populations that experience inbreeding may also...Ch. 23 - Prob. 1CQCh. 23 - Prob. 2CQCh. 23 - Prob. 3CQCh. 23 - Antibiotics are commonly used to combat bacterial...Ch. 23 - Discuss die similarities and differences among...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Consider a hypothetical beetle population, in which beetle colour variesalong a spectrum from light to dark green. When introduced to anenvironment characterized by light green moss and dark green shrubs,both light and dark green beetles have higher fitness than medium greenbeetles. Which of the following terms best describes this situation? Select one:O a. Stabilizing selectionO b. Directional selectionO c. Disruptive selectionO d. Sexual selectionarrow_forwardMany species of birds choose their mates based on how brightly colored they are. If feather color is heritable, how would this violate the assumptions required for a population to be in Hardy-Weinberg equillibrium? HW equilibrium would cause mutations in such a species. A. This is a founder effect В. This is a bottleneck effect C. OD. Mating is non-random. Alleles for brightly colored phenotypes might become more common in the species and allele frequency would change.arrow_forwardAssuming a population is in Hardy-Weinberg equilibrium, an increase in the frequency of the p(A) allele from 0.6 to 0.9 would result in which of the following outcomes? a. A decrease in the number of homozygous dominant individuals within the population b. A decrease in the number of homozygous recessive individuals within the population c. An increase in the number of homozygous recessive individuals within the population d. An increase in the number of heterozygotes within the population e. No change in genotypic frequency within the populationarrow_forward
- The following are necessary for a population to be in Hardy-Weinberg Equilibrium except The following are necessary for a population to be in Hardy-Weinberg Equilibrium except A, no selection B. very large population C. non-random mating D. no gene flow E. no mutationarrow_forwardMigration of individuals from a mainland population to a unique island population will result in… a. homogenization of allele frequencies between the two populations. b. isolation and bottleneck effect. c. increased homozygosity in both populations. d. increased population differentiation between the two populations.arrow_forwardHardy Weinberg equilibrium (HWE) describes a situation in which the relative frequencies of alleles do not change over generations. which of the following could prevent HWE from being maintained? A. New mutations B. All individuals reproducing equally C. Random mating D. No individuals entering the populationarrow_forward
- Which of the following statements is true about linkage disequilibrium? a. New alleles are born into a population in LE with the surrounding loci b. Genetic hitchhiking results from LD between surrounding loci and a locus under strong selection c. Loci in LE in two different populations with different allele frequencies will remain in LE when the two populations completely merge into a single population. d. The greater the selection on a locus, the smaller the haplotype block maintained around it e. D= 0.15 indicates that two loci are in greater LD than D= -0.23arrow_forwardA. The Hardy-Weinberg Equilibrium is important because it serves as a null hypothesis in studies that evaluate evolution of species. it explains how evolution works. it predicts how allele and genotype frequencies will change over time. it clarifies how traits are passed from parent to offspring. B. Hardy-Weinberg Equilibrium occurs frequently in natural populations. predicts changes in allele and genotype frequencies. is inhibited by random mating. assumes large population sizes.arrow_forwardWhich of the following types of selection maintain variation in a population? a. Overdominance (Heterozygote advantage) b. Underdominance (Heterozygote disadvantage) c. Frequency-dependent selection d. Directional selection e. Both a. & b. f. Both a. and c. g. Both a. and d.arrow_forward
- A population occupies heterogeneous environments in which the fitness of some genotypes is higher in one environment and the fitness of other individuals is higher in another environment. This situation is likely to result in a. directional selection. b. stabilizing selection. c. disruptive selection. d. balancing selection.arrow_forwardA hypothetical population was found to have a genotype frequency of AA=25%, Aa=50%, aa=25%. If the “A” allele determines the larger beak depth of this species (“AA” leads to large beak depth, “Aa” is moderate beak depth, and “aa” leads to smaller beak depth), what type of selection is this trait likely experiencing in this population? a. directional b. stabilizing c. disruptivearrow_forwardA population of birds may have red feathers Show work here: (the dominant phenotype) or orange feathers (the recessive phenotype). Red feathered birds have the genotype RR or Rr. Orange feathered birds have the genotype r. The fequency of the RR genotype is 46. a. What is the frequency of heterozygous birds? b. What is the frequency of the R allele? c. What is the frequency of the r allele?arrow_forward
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