Exam 26: Evolutionary Genetics

A species is a group of individuals whose members have the potential to interbreed and produce viable, fertile offspring.

Microevolution is the term given to evolutionary changes that produce new species and groups of species.

Which of the following correctly accounts for the rate of evolutionary change?

Regions of a chromosome that contain groups of linked genes in several species are called .

The most common mechanism of speciation.

The production of sterile offspring is an example of a prezygotic isolation mechanism.

Horizontal gene transfer is most common among what group of organisms?

The formation of polyploids in plants is an example of this model.

The changing composition of a gene pool with regard to a particular allele over a measurable period of time is called .

Evo-devo studies evolution through comparisons of developmental gene expression to determine evolutionary relationships.

Molecular clocks are based on mutations.

The modern understanding of evolution or the Neo-Darwinian theory is based on the work of what individual?

Which of the following would NOT be an explanation of how observed differences in variation occur at the microevolutionary level?

Expression of mouse Pax6 in various parts of the Drosophila body led to what result?