Genetic Drift and Natural Selection Quiz

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Questions and Answers

What type of selection removes individuals from the center of a phenotypic distribution?

  • Kin Selection
  • Disruptive Selection (correct)
  • Directional Selection
  • Stabilizing Selection

Which selection process favors traits that benefit related members of a group?

  • Sexual Selection
  • Gene Flow
  • Disruptive Selection
  • Kin Selection (correct)

What is the outcome of Sexual Selection in terms of evolutionary fitness?

  • Phenotypic differences
  • Both survival and reproductive abilities (correct)
  • Survival ability only
  • Ability to reproduce only

In the context of natural selection, what happens when pollinators transport pollen across a river to flowers on the other side?

<p>Gene Flow takes place (D)</p> Signup and view all the answers

What process leads to the elimination of pink monkeys due to the dominance of the white allele?

<p>Natural Selection (C)</p> Signup and view all the answers

What drives the formation of bimodal distributions in populations under Disruptive Selection?

<p>Removal of central individuals from the gene pool (D)</p> Signup and view all the answers

What is required for natural selection to occur within a population?

<p>Variation in individual traits (C)</p> Signup and view all the answers

Which scenario would NOT promote genetic drift?

<p>Geographical isolation leading to separate populations (C)</p> Signup and view all the answers

What happens in a bottleneck population scenario?

<p>Surviving population has reduced gene pool (B)</p> Signup and view all the answers

Why is variation in individual traits important for natural selection?

<p>To allow nature to select certain traits over others (D)</p> Signup and view all the answers

How does the founder effect contribute to genetic drift?

<p>By reducing the gene pool of the founding group (D)</p> Signup and view all the answers

What role does high rate of population growth play in natural selection?

<p>It results in a struggle for limited resources (B)</p> Signup and view all the answers

What is the main outcome of natural selection?

<p>Change in the genetic makeup of a population (D)</p> Signup and view all the answers

In which type of natural selection does the distribution mean remain unchanged?

<p>Stabilizing Selection (D)</p> Signup and view all the answers

What happens in directional selection?

<p>It causes a shift in the distribution towards one extreme (A)</p> Signup and view all the answers

How does reproduction contribute to natural selection?

<p>Individuals with traits suitable for their environment reproduce more (D)</p> Signup and view all the answers

What is the result of stabilizing selection on extreme variations?

<p>Extreme variations become less common or lost (A)</p> Signup and view all the answers

Why does natural selection result in changes in allele frequencies in a population?

<p>As individuals best adapted to the environment reproduce more (C)</p> Signup and view all the answers

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