Exam 15: Evolution

Modern theories of evolution recognize that mutation, recombination of genes through hybridization, and polyploidy (at least in plants)are essential to allowing the development of a new species.

Which of the following provides evidence in support of evolution?

Charles Darwin's book On the Origin of Species was first published in

Sterile hybrids may reproduce by asexual means.

Genetic drift can bring about evolutionary changes but only in populations of very large size.

Charles Darwin used the term ‘natural selection' to contrast the evolutionary process in natural populations with the process of ____________ followed by plant (and animal) breeders.

New species cannot develop without geographical isolation.

No permanent change in a population occurs unless there is/are

A biological revolution started in 1859 when Charles Darwin published

Approximately half of present-day plant species are believed to have originated in the past by which of the following events?

The development from a single gene pool of two gene pools that are different enough to prevent interbreeding usually comes about as a result of

Changes within chromosomes may occur through which of the following?

Natural selection is based on all of the following aspects EXCEPT

Deletions, translocations, and inversions are chromosomal changes that lead to mutations.