Wikia

Psychology Wiki

Consanguineous marriage

Talk0
34,142pages on
this wiki
Revision as of 20:11, June 2, 2009 by Dr Joe Kiff (Talk | contribs)

Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Social psychology: Altruism · Attribution · Attitudes · Conformity · Discrimination · Groups · Interpersonal relations · Obedience · Prejudice · Norms · Perception · Index · Outline


Consanguineous marriage is a marriage between blood relatives. See Consanguinity


Attraction between raised apart siblings

Genetic disorders

Further information: Inbreeding

The offspring of consanguinous relationships are at greater risk of certain genetic disorders. Autosomal recessive disorders occur in individuals who are homozygous for a particular recessive gene mutation. This means that they carry two copies (alleles) of the same gene. Except in certain rare circumstances (new mutations or uniparental disomy) both parents of an individual with such a disorder will be carriers of the gene. Such carriers are not affected and will not display any signs that they are carriers, and so may be unaware that they carry the mutated gene. As relatives share a proportion of their genes, it is much more likely that related parents will be carriers of an autosomal recessive gene, and therefore their children are at a higher risk of an autosomal recessive disorder. The extent to which the risk increases depends on the degree of genetic relationship between the parents; so the risk is greater in mating relationships where the parents are close relatives, but for relationships between more distant relatives, such as second cousins, the risk is lower (although still greater than the general population).[1]

See also


Cite error: <ref> tags exist, but no <references/> tag was found

Around Wikia's network

Random Wiki