Concepts of Genetics Plus Mastering Genetics with Pearson eText -- Access Card Package (12th Edition) (What's New in Genetics)
12th Edition
ISBN: 9780134811390
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino, Darrell Killian
Publisher: PEARSON
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Chapter 26, Problem 2PDQ
CONCEPT QUESTION Read the Chapter Concepts list on page 621. All these pertain to the principles of population genetics and the evolution of species. Write a short essay describing the roles of mutation, migration, and selection in bringing about
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Can you answer all the parts to this diagram
Species 1 and 2 are sister species from which you’ve cloned related genes. On the gene tree on the top of the next page, use labels to answer the following questions:
(a) Label the node that represents a gene duplication with “D,”
(b) Label the nodes that represent speciation events with “S,”
(c) Pick a pair of genes that are paralogs and label them both “P.”
(d) Pick a pair of genes that are orthologs and label them both “O.”
Compare and contrast the neutral theory of evolution and the Darwinian (i.e., selectionist) theory of evolution. Explain why the neutral theory of evolution is sometimes called non-Darwinian evolution.
Please match:
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Allele
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Analogous
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Sympatric
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Homologous
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Allopatric
1.
The wing of a bat and the leg of a horse are examples of ____ structures
2.
The wing of a bat and the wing of a butterfly are examples of______ structures
3.
A version of a gene is called a(n)
4.
Speciation that occurs when two species are together is called
5.
Speciation resulting from two populations being separated by a physical barrier is called
Chapter 26 Solutions
Concepts of Genetics Plus Mastering Genetics with Pearson eText -- Access Card Package (12th Edition) (What's New in Genetics)
Ch. 26 - The ability to taste the compound...Ch. 26 - Determine whether the following two sets of data...Ch. 26 - If the albino phenotype occurs in 1/10,000...Ch. 26 - A prospective groom, who is unaffected, has a...Ch. 26 - In a region of Quebec, Canada, 1 in 22 people are...Ch. 26 - Critics argue that a uniform panel of disorders...Ch. 26 - Others argue that the current testing system...Ch. 26 - HOW DO WE KNOW? Population geneticists study...Ch. 26 - CONCEPT QUESTION Read the Chapter Concepts list on...Ch. 26 - Price et al. [(1999).J. Bacteriol181:2358-2362)...
Ch. 26 - The genetic difference between two Drosophila...Ch. 26 - The use of nucleotide sequence data to measure...Ch. 26 - Prob. 6PDQCh. 26 - What must be assumed in order to validate the...Ch. 26 - In a population where only the total number of...Ch. 26 - If 4 percent of a population in equilibrium...Ch. 26 - Consider a population in which the frequency of...Ch. 26 - If the initial allele frequencies are p = 0.5 and...Ch. 26 - Under what circumstances might a lethal dominant...Ch. 26 - Assume that a recessive autosomal disorder occurs...Ch. 26 - One of the first Mendelian traits identified in...Ch. 26 - Describe how populations with substantial genetic...Ch. 26 - Achondroplasia is a dominant trait that causes a...Ch. 26 - Prob. 17PDQCh. 26 - Prob. 18PDQCh. 26 - A botanist studying water lilies in an isolated...Ch. 26 - A farmer plants transgenic Bt corn that is...Ch. 26 - In an isolated population of 50 desert bighorn...Ch. 26 - To increase genetic diversity in the bighorn sheep...Ch. 26 - What genetic changes take place during speciation?Ch. 26 - Some critics have warned that the use of gene...Ch. 26 - Prob. 25PDQCh. 26 - What are the two groups of reproductive isolating...Ch. 26 - A form of dwarfism known as Ellisvan Creveld...Ch. 26 - The original source of new alleles, upon which...Ch. 26 - A number of comparisons of nucleotide sequences...Ch. 26 - Shown below are two homologous lengths of the...Ch. 26 - Recent reconstructions of evolutionary history are...
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- Discuss the significance of the HardyWeinberg principle as it relates to evolution and list the five conditions required for genetic equilibrium.arrow_forwardIn sexually reproducing species, each individual begins life with DNA inherited from both parent organisms. , Apply this idea to what occurs when organisms of two species that have homologous chromosomes mate and produce ( F1 ) hybrid offspring. What percentage of the DNA in the F1 hybrids' chromosomes comes from each parent species? As the hybrids mate and produce F2 and later-generation hybrid offspring, describe how recombination and natural selection may affect whether the DNA in hybrid chromosomes is derived from one parent species or the other.arrow_forwardplease help me with this questionarrow_forward
- Please answer fast Consider a laboratory population that consists entirely of individuals with the same“repulsion” double heterozygous (diploid) genotype, Ab/aB. Assume the rate ofrecombination between the “A” and “B” loci is c = 1/ 4 .a) What are r, s, t and u in this population? What is D?b) What are r, s, t and u after 1 generation of random breeding? What is D?c) What are r, s, t and u after 5 generations of random breeding? What is D?arrow_forwardDescribe the present day theory of evolution. Describe the 4 basic causes of evolution: natural selection, mutation, genetic drift, and gene flow. Describe how each evolutionary force can influence the allele frequencies of a population. Describe sources of evidence for evolution. Identify common misconceptions about evolution. Identify common criticisms of evolution. Describe the evolution of COVID-19.arrow_forwardNatural selection predicts that two species that came from a common ancestor should have high degree of correlation in their genomes. what aspect (use) of correlation am I using when apply it for this purpose?arrow_forward
- In addition to evolution through vertical descent, evolutionary changes can also occur by horizontal gene transfer, and this process involves 1. mostly eukaryotic organisms. 2. competition 3. the transfer of genes from one organism to another one that is not its direct descendant and might even be from a different species. 4. a recent time in the history of life in our planet. 5. the transfer of genes from one organism to another one with a parent-offspring relationship.arrow_forwardGenetic drift is often described as a “chance event.” Give other examples of chance events that could cause a genetic bottleneck.arrow_forwardFor each pair of individuals listed in the left column, select the description which best details the pair's contribution to genetics. 1. one gene - one enzyme hypothesis Beadle and Tatum 2. formula for the chance distribution of genotypes in natural populations Hardy and Weinberg 3. bacterial operons Jacob and Monod 4. phenomenon of sex linkagearrow_forward
- Saola Pseudoryx nghetinhensis (Species) Discuss how you will manage new founders of the saola Pseudoryx nghetinhensis? Discuss whether you should create artificial emigration and immigration for different facilities. Discuss how you will deal with Individuals with unknown ancestry of Pseudoryx nghetinhensis? Discuss what molecular techniques you will employ to monitor the genetic diversity of your population and any new founders of Pseudoryx nghetinhensis?arrow_forwardAn hypothesis for the extinction of the dinosaurs is that the earth had been hit by a gigantic meteor that caused the death of those big reptiles. In that case the entire genetic pool of those animals has been destroyed, invalidating the Hardy-Weinberg equilibrium. In Genetics what is this type of gene frequency change called?arrow_forwardThe ancestor of cats was presumably homozygous for wild type at all of the described genes. 1a. What was the genotype of this ancestral cat at each of these loci? Tyrosinase Orange Browning Dense Piebald Tabby Unstriped White-maskarrow_forward
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