Evolutionary Mechanisms

Front

In which scenario is Genetic Drift most likely to have a significant impact?

Back

in isolated, small populations

Front

A _____________________ involves a change in the genetic code of an organism. Because this change occurs in the genetic code, it is passed on to future generations. Options: Morphology, Mutation, Gene Flow, Genetic Drift

Back

Mutation

Front

Which term represents the movement of individuals into or out of an area? Options: natural selection, mutation, gene flow, adaptation

Back

gene flow

Front

Which of the following is an example of genetic drift?

• A herd of cattle being selectively bred for increased milk production
• A population of plants adapting to a new climate through natural selection
• A small population of birds being isolated on an island and developing different traits over time.
• A group of fish developing different colors due to environmental factors

Back

A small population of birds being isolated on an island and developing different traits over time.

Front

What occurs when members of one population migrate and interbreed with another population?

Back

Gene Flow

Front

What is the effect of genetic drift on a small population?

Back

It can lead to a loss of genetic variation

Front

What is the primary cause of genetic variation within a population?

Back

Mutation

Front

Evolution is...

Back

A change in the gene pool

Front

Which mechanism of evolution is represented by the pinky finger? Options: genetic recombination, natural selection, genetic drift, mutation

Back

genetic drift

Front

Which mechanism of evolution is represented by the ring finger? Options: genetic recombination, natural selection, genetic drift, mutation

Back

genetic recombination