Genetic Variation - Evolution and the Hardy Weinberg Equilibrium - Natural Selection

10 important questions on Genetic Variation - Evolution and the Hardy Weinberg Equilibrium - Natural Selection

What is the core definition of natural selection?

The process where individuals with advantageous traits leave more offspring.
  • Heritable traits
  • Reproductive advantage
  • Increasing population trait frequency

What is meant by variation in natural selection?

Differences in traits among individuals in a population.
  • Variation
  • Individuals
  • Traits

What must be true for traits to be subject to natural selection?

Traits must be genetically passed from parents to offspring.
  • Heritability
  • Traits
  • Genetically passed
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How does differential reproductive success impact natural selection?

Individuals with advantageous traits produce more surviving offspring.
  • Differential reproductive success
  • Advantageous traits
  • More surviving offspring

What changes occur over time due to natural selection?

Advantageous traits increase in frequency; disadvantageous traits decrease.
  • Change over time
  • Advantageous traits
  • Decrease

What does directional selection favor?

One extreme phenotype is favored, shifting trait mean.
  • Directional selection
  • Extreme phenotype
  • Shifts mean trait

What is stabilizing selection's effect on trait distribution?

Favors intermediate phenotypes, reducing variation.
  • Stabilizing selection
  • Intermediate phenotypes
  • Reduces variation

What is an adaptation in the context of natural selection?

A heritable trait that increases fitness in a specific environment.
  • Adaptation
  • Heritable trait
  • Increases fitness

How does fitness relate to natural selection?

It measures the relative reproductive success of a genotype or phenotype.
  • Fitness
  • Relative reproductive success
  • Genotype

How does natural selection differ from genetic drift?

Selection is non-random and adaptive, while drift is random.
  • Non-random
  • Adaptive
  • Genetic drift

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