Evolution Introduction

The change in allele frequencies over time.

• genotype
• crossing over
• evolution
• adaptation

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Traits that help an organism survive and reproduce in its environment.

• evolution
• adaptation
• selection
• genotypes

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A group of organisms of the same species which live in a shared space and reproduce with each other.

• population
• species
• alleles

The physical, or detectable, characteristics of an organism.

• phenotype
• genotype
• adaptations
• alleles

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An example of a population would be 

• all the owls in North America.
• different kinds of butterflies living in the same patch of rain forest.
• sparrows.
• a group of wood ducks living in the same pond in a forest.

Which of the following does not cause variation in populations?

• mutation
• asexual reproduction
• gene flow
• genetic recombination

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A spontaneous change in a gene or chromosome affecting the gene pool of a population is what?

• mutation
• error
• evolution
• natural selection

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All the genes available in a population is known as 

• alleles.
• genotypes.
• gene pool.
• gene flow.

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Sometimes referred to as "survival of the fittest," this process allows those traits which are most favorable to be passed on to the next generation and those which are not to be eliminated.

• genetic drift
• gene flow
• natural selection
• mutation

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The introduction of new genes into a population due to new individuals moving into an area is known as what?

• genetic drift
• gene flow
• gene pool
• mutation

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