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By the 1920s, the number of states banning cousin marriage had doubled. [183] Since that time, Kentucky (1943) and Texas have banned first-cousin marriage and since 1985, Maine has mandated genetic counseling for marrying cousins to minimise risk to any serious health defect to their children.
Cousin marriages have genetic aspects that increase the chance of sharing genes for recessive traits. The coefficient of relationship between any two individuals decreases fourfold as the most recent common ancestor recedes one generation. First cousins have four times the consanguinity of second cousins, while first cousins once removed have ...
Consanguine marriage is marriage between individuals who are closely related. Though it may involve incest , it implies more than the sexual nature of incest. In a clinical sense, marriage between two family members who are second cousins or closer qualifies as consanguineous marriage.
An MP has spoken against calls to ban first-cousin marriage in the UK, and suggested “advanced genetic test screening” is made available to prospective couples.
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Cousin marriage in the Middle East – Consanguineous relationships in the Middle East; Endogamy – Marrying within a specific ethnic group, class, or social group; Exogamy – Social arrangement which only allows marriage outside a social group; Genetic distance – Measure of divergence between populations
The Republican-led Tennessee Legislature has overwhelmingly voted to send GOP Gov. Bill Lee a proposal that would ban marriage between first cousins. The House cast a 75-2 vote Thursday on the ...