Genetic Drift & Gene Flow

Genetic drift is a change in allele frequency in a population due to:

• random chance

• natural selection

• sexual selection

• artificial selection

Genetic drift is more dramatic in:

• aquatic populations

• terrestrial populations

• small population

• old populations

All of the genetic information found in a population

• population

• genetic drift

• evolution

• gene pool

A change in a gene

• replication

• translation

• mutation

• transcription

Genetic drift is driven by chance, not natural selection

• true

• false

A forest fire ignites and kills many members of a population of rattlesnakes. This is an example of:

• gene flow

• genetic drift

• mutation

This image represents:

• gene flow

• genetic drift

Maria Concepcion Soto settled in the northern area of Venezuela. She suffered from a rare genetic disorder called Huntington’s Disease. As a result, the now 20,000 individuals who live there also have a high risk of Huntington’s Disease. This is an example of:

• genetic drift

• gene flow

Genetic diversity is increased through:

• genetic drift

• gene flow

This image is an example of:

• genetic drift

• gene flow