Genetic Variation
Sources of Variation

Sources of Variation

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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.


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APA format:
Genetic Science Learning Center (2014, June 22) Sources of Variation. Learn.Genetics. Retrieved February 28, 2015, from http://learn.genetics.utah.edu/content/variation/sources/
MLA format:
Genetic Science Learning Center. "Sources of Variation." Learn.Genetics 28 February 2015 <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/> (28 February 2015)