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The degree of relative consanguinity can be illustrated with a consanguinity table in which each level of lineal consanguinity (generation or meiosis) appears as a row, and individuals with a collaterally consanguineous relationship share the same row. [5]
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 measure is most commonly used in genetics and genealogy.
The first prohibited degree of consanguinity was a parent-child relationship while a second degree would be a sibling relationship. A third degree would be an uncle/aunt with a niece/nephew while fourth degree was between first cousins. [ 4 ]
In Catholic canon law, affinity is an impediment to marriage of a couple due to the relationship which either party has as a result of a kinship relationship created by another marriage or as a result of extramarital intercourse. The relationships that give rise to the impediment have varied over time.
In the English system the cousin relationship is further detailed by the concepts of degree and removal. The degree is the number of generations subsequent to the common ancestor before a parent of one of the cousins is found. This means the degree is the separation of the cousin from the common ancestor less one.
In some countries, the prohibition on sexual relations between persons in an affinity relationship may be expressed in terms of degrees of relationship. The degree of affinity is considered the same as the consanguineal level a couple was joined, so that, for example, the degree of affinity of a husband to his sister-in-law is two, the same as ...
Vance's statement said Weinstein was charged by the grand jury with rape in the first and third degrees and a criminal sexual act in the first degree. If convicted on the most serious charges ...
However, the degree of relationship between collateral (non-lineal) relatives equals the number of links in the family tree from one person, up to the common ancestor, and then back to the other person. Thus brothers are related in the second degree, and first cousins in the fourth degree. [198]