Chapter 16 Quiz

The combined genetic information of all members of a particular population forms a

• gene pool

• niche

• phenotype

• population

The success of an organism in surviving and reproducing is a measure of its

• fitness

• polygenic traits

• speciation

• gene pool

Traits that are controlled by more than one gene, such as human height, are known as

• single-gene traits

• polygenic traits

• recessive traits

• dominant traits

The type of selection in which individuals of average size have greater fitness than small or large individuals is called

• disruptive selection

• stabilizing selection

• directional selection

• genetic drift

The type of selection in which individuals at one end of a curve have the highest fitness is called

• stabilizing selection

• disruptive selection

• directional selection

• the founder effect

If coat color in a rabbit population is a polygenic trait, which process might have produced the graph below?

• stabilizing selection

• disruptive selection

• directional selection

• genetic equilibrium

A random change in a small population's allele frequency is known as

• a gene pool

• genetic drift

• variation

• fitness

A change in allele frequency that results from the migration of a small subgroup of a population is called

• natural selection

• the Hardy-Weinberg principle

• the founder-effect

• genetic equillibrum

A group of individuals of the same species that interbreed make up a

• species

• gene pool

• population

• genetic drift

The evolution of Darwin's finches is an example of

• equilibrium

• speciation

• stabilizing selection

• artificial selection