additive factor

additive factor

[′ad·ə·div ′fak·tər]
(genetics)
Any of a group of nonallelic genes that affect the same phenotypic characteristics.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The associated infection can also act as an additive factor, hastening the erosion of the urethra and surrounding skin.
Gilmour at the Benedict (Md.) Estuarine Research Laboratory -- tended to have an acidic pH, Rudd says it's possible that sulfates may represent yet another additive factor contributing to the methylmercury problem in regions beset by acid rain.
After traumatic brain injury there is additive factors that affect the motor function in these patients.