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pleiotropy

[plahy-o-truh-pee] /plaɪˈɒ trə pi/
noun, Genetics.
1.
the phenomenon of one gene being responsible for or affecting more than one phenotypic characteristic.
Origin
1935-1940
1935-40; pleio- + -tropy
Related forms
pleiotropic
[plahy-uh-trop-ik, -troh-pik] /ˌplaɪ əˈtrɒp ɪk, -ˈtroʊ pɪk/ (Show IPA),
adjective
pleiotropically, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for pleiotropy
  • pleiotropy is when a gene can be expressed as many different phenotypes throughout the body.
Word Origin and History for pleiotropy
n.

1921, from German pleiotrop (1910), from Greek pleion "greater in quantity, the more part, very many," (see pleio-) + trope "turn, turning" (see trope). Related: Pleiotropic; pleiotropism.

Online Etymology Dictionary, © 2010 Douglas Harper
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