Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 22.2, Problem 1R
Summary Introduction
To review:
As per the Dobzhansky-Muller model, the divergence in the alleles at different gene loci leads to genetic incompatibility between the species. It needs to study the incompatibility which is less likely at the same locus between two alleles.
Given:
It is given that Dobzhansky-Muller model suggests that the divergence in the alleles is seen at different loci of a gene which can lead to genetic incompatibility between the species that possess such genes.
Introduction:
Dobzhansky-Muller model is a two-locus version model which studies the changes between the two lineages are from the same ancestor population, which gets divided from each other and evolve on their own. The new allele that generates, it becomes fixed in each descendent but the locus of the two alleles becomes different.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Tay-Sachs disease is caused by loss-of-function mutations in a gene on chromosome 15 thatencodes a lysosomal enzyme. Tach-Sachs is inherited as a autosomal recessive conidition.Among Ashkenazi Jews of central European ancestry, about 1 in 3600 children is born withthe disease. What fraction of the individuals in this population are carriers? (Assume thepopulation is in Hardy-Weinberg equilibrium)
Two SNPs are located in the short arm of chromosome 12. SNP1 has allele frequencies of 60% T and 40% C, and SNP2 has allele frequencies of 40% A and 60% G. What is the frequency of the haplotype T-G in a population if the two SNPs are in absolute linkage disequilibrium and if they are in linkage equilibrium?
Which Hardy-Weinberg equation relates the frequencies of the genotypes for a particular gene locus?
Chapter 22 Solutions
Life: The Science of Biology
Knowledge Booster
Learn more about
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 the case of a hypothetical genetic disease called WhySciEleven (WSE), an inherited disease that results to the inability to complete production of an amino acid “moduleactivity” that results in brain damage if untreated. WSE is due to a recessive allele. Given one WSE occurrence per 10,000 births. Which term in the Hardy-Weinberg equation corresponds to the frequency of individuals who have no alleles for the disease WSE? a. p b. 2pq c. p2 d. q2arrow_forwardIn a population of a beetle species, you notice that thereis a 3:1 ratio of shiny to dull wing covers. Does this ratioprove that the shiny allele is dominant? (Assume thatthe two states are caused by two alleles of one gene.) Ifnot, what does it prove? How would you elucidate thesituation?arrow_forwardConsidering the concept of industrial melanism, what component of fitness or which components of fitness are experiencing natural selection in these populations of Biston betularia?arrow_forward
- A neutral mutation arises in a diploid population of 10,000 individuals. Use this information to answer the following questions. a) What is the probability that the neutral allele goes to fixation? b) Assuming that the neutral mutation eventually goes to fixation, what is the expected time to fixation (in generations)?arrow_forwardWhich Hardy-Weinberg equation relates the frequencies of the alleles at a particular gene locus?arrow_forwardA population of 30 individuals has a mutation that generates a new allele “a”. This new allele gives a nearly identical phenotype to the “old” allele “A”. What is the probability of fixation for “a”? What will be the average number of generations until fixation? How would these values change if the population contained 3000 individuals?arrow_forward
- Consider a rare deleterious recessive allele for a specific gene/locus. In this hypothetical population, the deleterious recessive allele exists at a proportion of 0.01. In an offspring with randomly chosen parents, what is the probability that the offspring will be homozygous for the deleterious recessive allele [q]?arrow_forwardIn a randomly mating laboratory population of Drosophila, 4 percent of the flies have black bodies (encodedby the autosomal recessive b), and 96 percent havebrown bodies (the wild type, encoded by B). If this population is assumed to be in Hardy–Weinberg equilibrium, what are the allele frequencies of B and b and thegenotypic frequencies of B/B and B/b?arrow_forwardColor blindness in humans is caused by an X-linked recessive allele. Ten percent of the males of a large andrandomly mating population are color-blind. A representative group of 1000 people from this population migrates to a South Pacific island, where there are already1000 inhabitants and where 30 percent of the males arecolor-blind. Assuming that Hardy–Weinberg equilibrium applies throughout (in the two original populationsbefore the migration and in the mixed population immediately after the migration), what fraction of malesand females can be expected to be color-blind in the generation immediately after the arrival of the migrants?arrow_forward
- Which Hardy-Weinberg equation relates the frequencies of the phenotypes for a gene?arrow_forwardA wild-type fruit fly (heterozygous for gray body color andred eyes) is mated with a black fruit fly with purple eyes. Theoffspring are wild-type, 721; black purple, 751; gray purple, 49;black red, 45. What is the recombination frequency betweenthese genes for body color and eye color? Using informationfrom problem 3, what fruit flies (genotypes and phenotypes)would you mate to determine the order of the body color, wingsize, and eye color genes on the chromosome?arrow_forwardA species of antelope has 20 chromosomes per set. The species isdivided by a mountain range into two separate populations, whichwe will call the eastern and western population. In a comparison ofthe karyotypes of these two populations, it was discovered that themembers of the eastern population are homozygous for a largeinversion within chromosome 14. How would this inversion affectthe interbreeding between the two populations? Could such aninversion play an important role in speciation?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
DNA Use In Forensic Science; Author: DeBacco University;https://www.youtube.com/watch?v=2YIG3lUP-74;License: Standard YouTube License, CC-BY
Analysing forensic evidence | The Laboratory; Author: Wellcome Collection;https://www.youtube.com/watch?v=68Y-OamcTJ8;License: Standard YouTube License, CC-BY