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The FlyBar: Administering Alcohol to Flies
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The FlyBar: Administering Alcohol to Flies

Published on: May 18, 2014

Differences in life history traits between alcohol dehydrogenase genotypes of Drosophila mercatorum: background and

S M Williams1

  • 1Department of Biology, Washington University, St. Louis, MO 63130.

Genetica
|October 15, 1987
PubMed

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Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...