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As a working definition, unions contracted between persons biologically related as second cousins or closer (r ≥ 0.03125) are categorized as consanguineous. This arbitrary limit has been chosen because the genetic influence in marriages between couples related to a lesser degree would usually be expected to differ only slightly from that ...
First, second, and third cousins (and so on unto infinity cousins) are an equal number of generations removed from the common ancestor. First cousins are both the second generation removed from ...
Five states prohibit first-cousin-once-removed marriages. [4] Some states prohibiting cousin marriage recognize cousin marriages performed in other states, but despite occasional claims that this holds true in general, [5] laws also exist that explicitly void all foreign cousin marriages or marriages conducted by state residents out of state. [6]
In Pakistan, where there has been cousin marriage for generations and the current rate may exceed 50%, one study estimated infant mortality at 12.7 percent for married double first cousins, 7.9 percent for first cousins, 9.2 percent for first cousins once removed/double second cousins, 6.9 percent for second cousins, and 5.1 percent among ...
The terms cousin-uncle/aunt and cousin-niece/nephew are sometimes used to describe the direction of the removal of the relationship, [7] especially in Mennonite, [8] Indian, and Pakistani [citation needed] families. These terms relate to a first cousin once removed, uncle/aunt referring to an older generation and niece/nephew for younger ones.
This makes President Carter a half second-cousin of producer Berry Gordy. He is also a half second-cousin, once removed, of LMFAO rapper Redfoo (Stefan Kendal Gordy). s_bukley/depositphotos.
The coefficient of relationship is a measure of the degree of consanguinity (or biological relationship) between two individuals. The term coefficient of relationship was defined by Sewall Wright in 1922, and was derived from his definition of the coefficient of inbreeding of 1921.
The Habsburg Philip II of Spain and his wife, the Tudor Mary I of England.Mary and Philip were first cousins once removed. The wedding of Nicholas II of Russia and Alix of Hesse (whose name was changed to Alexandra Feodorovna in the process), second cousins through their shared great-grandparents Louis II, Grand Duke of Hesse, and Wilhelmine of Baden