Genetic Variation
Sources of Variation

Sources of Variation

Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player

Genetic mutations arise in response to the environment.

Genetic mutations are constantly occurring. Depending on the environment, mutations can be good, bad, or neutral.

HHMI Holiday Lecture connection

Dr. Sean Carroll explains how non-random selection works on random variations within a population.


Barton, N. H., Briggs, D. E. G., Eisen, J. A., Goldstein, D. B., & Patel, N. H. (2007). Evolution. Cold Spring Harbor Laboratory Press: Cold Spring Harbor, New York.

Sturm, R. A. (2009). Molecular genetics of human pigmentation diversity. Human Molecular Genetics, 18 (R1), R9-R17.

Funding provided by grant 51006109 from the Howard Hughes Medical Institute, Precollege Science Education Initiative for Biomedical Research.


383 Colorow Dr, Salt Lake City, Utah 84108

APA format:
Genetic Science Learning Center (2014, June 22) Sources of Variation. Learn.Genetics. Retrieved July 23, 2016, from http://learn.genetics.utah.edu/content/variation/sources
MLA format:
Genetic Science Learning Center. "Sources of Variation." Learn.Genetics 23 July 2016 <http://learn.genetics.utah.edu/content/variation/sources>
Chicago format:
Genetic Science Learning Center, "Sources of Variation," Learn.Genetics, 22 June 2014, <http://learn.genetics.utah.edu/content/variation/sources> (23 July 2016)