Avunculate marriage: Difference between revisions

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rv -- don't think we should do this on our own initiative. If sources expand the definition, we can follow
Lguipontes (talk | contribs)
Undid revision 570398312 by AnonMoos (talk). Sources seem to support better homosexual relationships than aunt-nephew ones.
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{{refimprove|date=December 2012}}
'''Avunculate marriage''' refers to a [[marriage]] between an [[uncle]] and a [[Nephew and niece|a niece or a nephew]],<ref>[http://www.memidex.com/avunculate Avunculate – Memidex dictionary/thesaurus]</ref><ref>[http://www.britannica.com/EBchecked/topic/45967/avunculate Avunculate (anthropology) – Encyclopedia Britannica]</ref> or between an [[aunt]] and a nephew or a niece ([[degree of relationshipConsanguinity|third degree relations]]). In some societies avunculate marriage is prohibited as a form of [[Laws regarding incest|incest]], while in others it is legal, or even common.
 
The partners of an avunculate marriage have the same genetic relationship as half-siblings or a grandparent and grandchild, sharing on average 25% of their genetic material. This is more than that of a [[cousin marriage|first cousin relationship]], in which on average the members would share 12.5% of their genetic material, but less than that of cousin-siblings or full siblings.