Exam 11: The Process of Evolution

In a population that is in Hardy-Weinberg equilibrium, the frequency of a particular dominant allele is 20 percent.What percentage of the individuals in this population will be heterozygous for that trait?

Which of the following statements about sympatric speciation is FALSE?

One approach of the phylogenetic species concept states that species are defined on the basis of their:

Which of the following statements concerning recombination speciation in sunflowers is FALSE?

Apomixis is a type of asexual reproduction in which embryos are produced independent of fertilization.

If two different populations of a species are genetically distinct they are called ecotypes.

An example of ______ is when a forest fire destroys a large percentage of a population of trees.

As an example of rapid evolutionary change, one variety of Agrostis grows much faster on tailings and dumps around abandoned lead mines than does another variety.What is the explanation for this?

In nature, allopatric speciation is more common than sympatric speciation.

Coevolution occurs when one species exerts a strong selective force on another.

The existence of Platanus × hybrida is indicative of the fact that:

The gradualism model of evolution states that a species appears abruptly in the fossil record.

According to the theory of punctuated equilibrium:

In a population, ______ results from the immigration or emigration of individuals.

Which of the following statements concerning ecotypes is FALSE?

Apomixis is a type of:

Which of the following statements about adaptation is FALSE?

The experiments with Potentilla glandulosa showed that this organism:

The tendency of individuals to vary over time in response to different environmental conditions is called:

Varieties of Kentucky bluegrass undergo a form of asexual reproduction known as ______ in which embryos that are genetically identical to the parent are produced.