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Ambilineality Unilineality Matrilineality Patrilineality.

taboo brother and sister

Some anthropologists argue that nuclear family incest avoidance can be explained in terms of the ecological, demographic, and economic benefits of exogamy.

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The existence of the Westermarck effect has achieved some empirical support.

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In other words, although an individual may be prohibited from marrying or having sexual relations with many people, different sexual relations may be prohibited for different reasons, and with different penalties.

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Societies that are stratified—that is, divided into unequal classes—often prescribe different degrees of endogamy.

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The rules regulating incest must be investigated in every society by means of the genealogical method. Since the rise of modern genetics, belief in this theory has grown. He argued that, in "primitive" societies, marriage is not fundamentally a relationship between a man and a woman, but a transaction involving a woman that forges a relationship—an alliance—between two men. Please help improve this article by adding citations to reliable sources. Through exogamy, otherwise unrelated households or lineages will form relationships through marriage, thus strengthening social solidarity.

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