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 (A)</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 (B)</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 (B)</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 (C)</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 (D)</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 (D)</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 (C)</p> Signup and view all the answers

What is one potential consequence of inbreeding?

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

What is a potential risk associated with inbreeding?

<p>Increased expression of harmful recessive traits (A)</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 (B)</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 (A)</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 (B)</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 (D)</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 (A)</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 (C)</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 (B)</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 (D)</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 (D)</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 (B)</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 (D)</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 (B)</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. (B)</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. (D)</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. (A)</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. (B)</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. (A)</p> Signup and view all the answers

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

<p>Selective breeding (C)</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 (D)</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 (B)</p> Signup and view all the answers

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

<p>Inbreeding (C)</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 (C)</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 (A)</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 (D)</p> Signup and view all the answers

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

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

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

<p>Social tolerance (C)</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 (D)</p> Signup and view all the answers

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