consanguineous mating
Pronunciation: kon-san-GWIN-ee-us MAY-ting
Reproduction between individuals who share recent common ancestors.
Full Definition
Consanguineous mating refers to reproduction between individuals who are related by blood and share one or more recent common ancestors. In reproductive genetics, consanguineous relationships increase the probability that offspring will inherit identical copies of rare recessive alleles, significantly elevating the risk for autosomal recessive disorders. The degree of relationship determines the coefficient of inbreeding, with first-cousin marriages carrying approximately a 6.25% chance that any given gene will be identical by descent in the offspring.
Usage
Usage note: More formal term than 'consanguinity' when specifically referring to reproductive partnerships.
In Context
- "The genetic counselor documented the consanguineous mating in the family history to assess recessive disease risk." — Genetic counseling documentation
- "Consanguineous mating increases the likelihood of rare autosomal recessive conditions manifesting in offspring." — Population genetics study