inbreeding

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inbreeding

 [in´brēd-ing]
the mating of closely related individuals or of individuals having closely similar genetic constitutions.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

in·breed·ing

(in'brēd-ing),
1. Mating between organisms that are genetically more closely related than organisms selected at random from the population.
2. A practice of mating animals that are closely related.
Farlex Partner Medical Dictionary © Farlex 2012

inbreeding

(ĭn′brē′dĭng)
n.
1. The breeding or mating of closely related individuals.
2. The intentional breeding of closely related individuals so as to preserve desirable traits in a stock.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

in·breed·ing

(in'brēd-ing)
1. Mating between organisms that are genetically more closely related than organisms selected at random from the population.
2. A practice of mating animals that are closely related.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

inbreeding

Mating of the closely related. Inbreeding tends to promote similarities and to deny access to new genes. It increases the chances of offspring being HOMOZYGOUS for RECESSIVE genes and thus manifesting the effect but, in itself, has no inherent tendency to produce bad characteristics. Its reputation so to do arises from the observation of the undesirable effects of inbreeding in the genetically disfavoured.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

inbreeding

any mating between relatives, which can lead to a general lowering of viability due to accumulation of deleterious genes, often in the HOMOZYGOUS state, passed on through both parents from a common ancestor. Compare OUTBREEDING.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

in·breed·ing

(in'brēd-ing)
Mating between organisms that are genetically more closely related than organisms selected at random from the population.
Medical Dictionary for the Dental Professions © Farlex 2012