pleiotropy
a condition in which a single gene has a multiplicity of phenotypic effects
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...
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Definition of pleiotropy :
The phenomenon whereby a single mutation affects several apparently unrelated aspects of the phenotype.
Pleiotropy: A phenomenon whereby a particular gene affects multiple traits.
Pollen: The cells that carry the male DNA of a seed plant.
pleiotropy
(ply-o-trop-ee) [Gk. pleios, more + trope, a turning]
The ability of a single gene to have multiple effects.
plesiomorphic character ...
Pleiotropy Multiple, apparently unrelated phenotypic effects of mutation at a single gene.
Pleiotropy the ability of one gene to have multiple effects
(pleio = more‚ full; trop = turn‚ change)
Pleurisy an infection in the pleural membranes lining the chest cavity
(pleura = the side‚ a rib) ...
Pleiotropy
Genes that affect more than one trait are called pleiotropic.
Pleiotropy One gene that causes many different physical traits such as multiple disease symptoms.
Pluripotency The potential of a cell to develop into more than one type of mature cell, depending on environment.
Pleiotropy
The effect of a single gene on several different phenotypic traits. The term was coined by Plate 1910. See article for types and mechanisms.
Related Terms:
Gene ...
Pleiotropy is the effect of a single gene on more than one characteristic. An example is the "frizzle-trait" in chickens. The primary result of this gene is the production of defective feathers.
Antagonistic pleiotropy: The effects of a gene, which are beneficial early in life (i.e., increasing fitness) but deleterious later in life (no change in fitness after the reproductive age).
Pleiotropy: when multiple phenotypic characters are affected by a single genetic variation, the map is said to possess 'pleiotropy'.
GAs do not ignore polygeny and pleiotropy: these properties are merely allowed to arise naturally rather than being deliberately coded in.
Few individuals survive long enough for these to be selected against.
Antagonistic pleiotropy. Genes that promote survival early in life at the expense of maintaining the body will be selected for.
Some examples: ...
Pleiotropy -- the phenomenon of variable phenotypes for a number of distinct and seemingly unrelated phenotypic effects.
 See also: Organ, Character, Environment, Phenotype, Mutation
  
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