Genomic Basis of Variation in Evolutionary Ecology
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Questions and Answers

What is the focus of evolutionary ecology in the age of genomics?

  • Analyzing the influence of Mendelian traits on complex traits
  • Studying the impact of transgenic siblings on genomic variation
  • Understanding the genetic basis of phenotypic variation (correct)
  • Investigating the role of ancient alleles in speciation

    • What is the main subject of study in the research by Seehausen et al in Nature Reviews Genetics?

  • The relationship between transgenic siblings and wild type organisms
  • The genetic basis of phenotypic variation and its role in speciation (correct)
  • Genotype markers X F1 F2 M. lewisii F1 M. cardinalis H. himera H. erato
  • The impact of standing variation on genomic scans and associations

    • Which research study focused on the impact of ancient alleles in genome scans and associations using Darwin’s finches?

  • Schemske & Bradshaw 1999 PNAS
  • Lamichhaney et al (2015) Nature (correct)
  • Kronforst & Papa 2015 Genetics
  • Colosimo et al. 2005 Science

    • What is the difficulty in studying some traits according to Schemske & Bradshaw 1999 PNAS?

    <p>The presence of complex traits (C)</p> Signup and view all the answers

    What did the research by Colosimo et al. 2005 Science reveal about genetic change in populations?

    <p>Change is parallel across many populations and ancient (standing variation) (D)</p> Signup and view all the answers

    What is the genetic basis of variation discussed in the text related to?

    <p>Monkeyflowers and Heliconius butterflies (D)</p> Signup and view all the answers

    What is the focus of GWAS (genome-wide association studies) discussed in the text?

    <p>Identifying genetic variation associated with phenotypic variation (C)</p> Signup and view all the answers

    What process shapes genomic variation by introducing variation for adaptation?

    <p>Gene flow (B)</p> Signup and view all the answers

    What does recombination do as a modifier in the context of selection and gene flow?

    <p>Determines the extent of selection effect (D)</p> Signup and view all the answers

    What is the purpose of a Manhattan plot in the context of GWAS?

    <p>Illustrating the strength of association between genetic variants and phenotypes (D)</p> Signup and view all the answers

    What do genetic signatures of selective sweeps indicate?

    <p>Reduced genetic diversity/variation (D)</p> Signup and view all the answers

    Which process typically removes genetic variation from a population?

    <p>Directional selection (A)</p> Signup and view all the answers

    What is the main purpose of using mean heterozygosity to detect selection?

    <p>To identify evidence of selective sweeps (A)</p> Signup and view all the answers

    What does empirical evidence support regarding the impact of recombination on gene flow?

    <p>Greater introgression in low recombination regions (A)</p> Signup and view all the answers

    What is the genetic basis of phenotypic variation?

    <p>Genetic (genomic) basis of variation</p> Signup and view all the answers

    What is the significance of the reuse of ancient alleles in the context of genomic variation?

    <p>Ancient alleles</p> Signup and view all the answers

    How do genome scans and associations contribute to the understanding of genomic variation?

    <p>Genome scans and associations</p> Signup and view all the answers

    What did the research by Colosimo et al. 2005 Science reveal about genetic change in populations?

    <p>Parallel and ancient change</p> Signup and view all the answers

    What is the role of genotype markers in studying genomic variation?

    <p>Genotype markers</p> Signup and view all the answers

    How do ancient alleles impact the study of genomic variation in Darwin’s finches?

    <p>Impact of ancient alleles</p> Signup and view all the answers

    What are the three processes that shape genomic variation according to the text?

    <p>Selection, gene flow, recombination</p> Signup and view all the answers

    What is the genetic basis of variation discussed in the text related to?

    <p>Phenotypic variation</p> Signup and view all the answers

    What is the impact of recombination as a modifier in the context of selection and gene flow?

    <p>Recombination shapes the extent of the effect of these two processes.</p> Signup and view all the answers

    What is the difficulty in studying some traits according to Schemske & Bradshaw 1999 PNAS?

    <p>The difficulty lies in detecting selection.</p> Signup and view all the answers

    What process shapes genomic variation by introducing variation for adaptation?

    <p>Gene flow</p> Signup and view all the answers

    What does empirical evidence support regarding the impact of recombination on gene flow?

    <p>Empirical evidence supports greater introgression in high recombination regions.</p> Signup and view all the answers

    What research study focused on the impact of ancient alleles in genome scans and associations using Darwin’s finches?

    <p>Colosimo et al. 2005 Science</p> Signup and view all the answers

    What is the focus of GWAS (genome-wide association studies) discussed in the text?

    <p>Identifying genetic variation associated with phenotypic variation</p> Signup and view all the answers

    What did the research by Colosimo et al. 2005 Science reveal about genetic change in populations?

    <p>The research revealed the impact of ancient alleles on genetic change in populations.</p> Signup and view all the answers

    What is the main purpose of using mean heterozygosity to detect selection?

    <p>Mean heterozygosity is used to detect selective sweeps.</p> Signup and view all the answers

    What is the main subject of study in the research by Seehausen et al in Nature Reviews Genetics?

    <p>Adaptive radiation</p> Signup and view all the answers

    What do genetic signatures of selective sweeps indicate?

    <p>Genetic signatures of selective sweeps indicate reduced genetic diversity/variation.</p> Signup and view all the answers

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