Behavior and Genetics Interconnectedness Quiz
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Questions and Answers

What does high heritability in a trait indicate?

  • Environmental influences play a larger role than genetic variation
  • Genetic variation contributes significantly to phenotypic variation (correct)
  • Phenotypic variation is not affected by genotype
  • There is little genetic variability for the trait within the population

    • How can artificial selection lead to unintended changes in behavior?

  • It has no impact on behavior traits
  • It decreases genetic variability in the population
  • It only enhances specific anatomical traits
  • Correlated responses to selection can influence behavior (correct)

    • Why is it important for a trait to have high heritability in the context of selective breeding?

  • High heritability leads to slower genetic progress
  • High heritability indicates rapid changes in allele frequencies can alter the trait (correct)
  • Low heritability allows for more efficient selection
  • Traits with low heritability are preferred in breeding programs

    • What risk may arise from a lack of genetic variability within a population?

    <p>Reduced chances of hybrid vigor</p> Signup and view all the answers

    How can breeders unintentionally influence irritability in animals through selective breeding?

    <p>Through correlated responses to selection for other traits</p> Signup and view all the answers

    What is the main purpose of utilizing genomic selection in animal breeding?

    <p>To select for desired traits with minimized negative correlated responses</p> Signup and view all the answers

    Why is it important for breeding goals to strike a balance between improving desired traits and maintaining overall population health?

    <p>To avoid unintended consequences on other aspects of the animal's biology</p> Signup and view all the answers

    How does fitness, in evolutionary biology, relate to the mechanisms of natural selection?

    <p>Fitness affects the ability to survive, reproduce, and pass on genes</p> Signup and view all the answers

    What is the significance of actively monitoring selected populations in animal breeding?

    <p>To prevent any correlated responses to artificial selection</p> Signup and view all the answers

    Why should animal breeders be mindful of selecting for specific traits?

    <p>To carefully consider trade-offs and possible unintended consequences</p> Signup and view all the answers

    What is one potential consequence of inbreeding?

    <p>Concentration of both desirable and undesirable genetic traits</p> Signup and view all the answers

    How can hybridization impact behavioral traits in populations?

    <p>By introducing novel genetic combinations that may affect behavior</p> Signup and view all the answers

    What is a potential risk associated with inbreeding?

    <p>Increased expression of harmful recessive traits</p> Signup and view all the answers

    If breeders consistently select for dogs with high trainability and docility, what is likely to happen over generations?

    <p>These behavioral traits will become more prevalent in the population</p> Signup and view all the answers

    What distinguishes hybridization from inbreeding in terms of genetic input?

    <p>Hybridization involves mating individuals from different populations or breeds, while inbreeding mates closely related individuals</p> Signup and view all the answers

    What is a possible evolutionary advantage for individuals who form stable pair bonds and invest in offspring care?

    <p>Higher chances of reproductive success</p> Signup and view all the answers

    How might the persistence of monogamous behavior in prairie voles be explained?

    <p>Selective advantage from forming close pair bonds and cooperating in raising offspring</p> Signup and view all the answers

    Why might individuals pursuing alternative mating strategies like polygyny or promiscuity have had lower reproductive success compared to those forming stable pair bonds?

    <p>Limited resources available for offspring care</p> Signup and view all the answers

    How does forming stable pair bonds and investing in offspring care contribute to the reproductive fitness of prairie voles?

    <p>By increasing the chances of passing on their genes to future generations</p> Signup and view all the answers

    Which of the following best describes the role of natural selection in shaping the monogamous behavior of prairie voles?

    <p>Selecting for traits associated with monogamous behavior over time</p> Signup and view all the answers

    What are some of the factors that influence behavior according to the text?

    <p>Genetic, environmental, and developmental factors</p> Signup and view all the answers

    In the domestication experiment with silver foxes, what was Dmitry Belyaev aiming to selectively breed for?

    <p>Tameness</p> Signup and view all the answers

    What unintended consequences may arise when manipulating genetic traits in domestic animal populations?

    <p>Expression of genetic disorders</p> Signup and view all the answers

    How did selective breeding for tameness impact the behavior of the silver foxes in the experiment?

    <p>Became more docile and sociable</p> Signup and view all the answers

    What was the percentage of males and females selected as parents for the next generation in the silver fox experiment?

    <p>5% of males and 20% of females</p> Signup and view all the answers

    What does the term 'genetic variability' refer to in the context of the text?

    <p>The presence of different alleles for a particular trait within a population.</p> Signup and view all the answers

    How does the alteration of a behavior genetically in just a few generations relate to the heritability of the trait?

    <p>It indicates that the trait has a high heritability.</p> Signup and view all the answers

    What role does genetic variability play in the process of selective breeding?

    <p>Providing raw material for natural selection to act upon.</p> Signup and view all the answers

    How does heritability relate to phenotypic variation within a population?

    <p>Heritability measures the proportion of genetic variation affecting phenotype differences.</p> Signup and view all the answers

    In the context of genetic traits and behaviors, what does 'hybridization' typically refer to?

    <p>The creation of new genetic combinations by crossing different varieties or species.</p> Signup and view all the answers

    What process aims to propagate individuals with desired traits, including behavioral characteristics?

    <p>Selective breeding</p> Signup and view all the answers

    In the context of animal behavior, what may be problematic in domestic settings due to their wild ancestral roots?

    <p>Territorial behaviors</p> Signup and view all the answers

    Which of the following traits may be favored through selective breeding or management practices in human-dominated landscapes?

    <p>Social tolerance</p> Signup and view all the answers

    Which process can alter behaviors relatively quickly through mechanisms like selection and inbreeding?

    <p>Inbreeding</p> Signup and view all the answers

    What kind of pressures may differ in man-modified environments compared to natural environments?

    <p>Selecting for social tolerance</p> Signup and view all the answers

    Which of the following is a mechanism that can influence behavior in just a few generations?

    <p>Inbreeding</p> Signup and view all the answers

    What can be altered through a combination of natural selection, artificial selection, and human management practices in domestic animals?

    <p>Behavioral traits</p> Signup and view all the answers

    What is the term for propagating individuals with specific desired traits through human intervention?

    <p>Selective breeding</p> Signup and view all the answers

    What type of animal behaviors are favored in human-dominated landscapes?

    <p>Social tolerance</p> Signup and view all the answers

    What can lead to conflicts with humans or other animals in domestic settings due to ancestral influences?

    <p>Territorial behaviors</p> Signup and view all the answers

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