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  2. Consanguinity - Wikipedia

    en.wikipedia.org/wiki/Consanguinity

    Consanguinity (from Latin consanguinitas 'blood relationship') is the characteristic of having a kinship with a relative who is descended from a common ancestor. Many jurisdictions have laws prohibiting people who are closely related by blood from marrying or having sexual relations with each other.

  3. Lineal descendant - Wikipedia

    en.wikipedia.org/wiki/Lineal_descendant

    A lineal or direct descendant, in legal usage, is a blood relative in the direct line of descent – the children, grandchildren, great-grandchildren, etc. of a person.In a legal procedure sense, lineal descent refers to the acquisition of estate by inheritance by parent from grandparent and by child from parent, whereas collateral descent refers to the acquisition of estate or real property ...

  4. Jus sanguinis - Wikipedia

    en.wikipedia.org/wiki/Jus_sanguinis

    Jus sanguinis (English: / dʒ ʌ s ˈ s æ ŋ ɡ w ɪ n ɪ s / juss SANG-gwin-iss [1] or / j uː s-/ yooss -⁠, [2] Latin: [juːs ˈsaŋɡwɪnɪs]), meaning 'right of blood', is a principle of nationality law by which nationality is determined or acquired by the nationality of one or both parents.

  5. Kinship terminology - Wikipedia

    en.wikipedia.org/wiki/Kinship_terminology

    Kinship terminology is the system used in languages to refer to the persons to whom an individual is related through kinship.Different societies classify kinship relations differently and therefore use different systems of kinship terminology; for example, some languages distinguish between consanguine and affinal uncles (i.e. the brothers of one's parents and the husbands of the sisters of ...

  6. Genetic history of the Indigenous peoples of the Americas

    en.wikipedia.org/wiki/Genetic_history_of_the...

    The "O" blood type (usually resulting from the absence of both A and B alleles) is very common around the world, with a rate of 63% in all human populations. [135] Type "O" is the primary blood type among the Indigenous populations of the Americas, particularly within Central and South American populations, with a frequency of nearly 100%. [135]

  7. Immediate family - Wikipedia

    en.wikipedia.org/wiki/Immediate_family

    The definition was to be expanded from "a remaining spouse, sexual cohabitant, partner, step-parent or step-child, parent-in-law or child-in-law, or an individual related by blood whose close association is an equivalent of a family relationship who was accepted by the deceased as a child of his/her family" to include "any person who had ...

  8. Matrilineality - Wikipedia

    en.wikipedia.org/wiki/Matrilineality

    Matrilineality, also called matriliny, is the tracing of kinship through the female line. It may also correlate with a social system in which each person is identified with their matriline, their mother's lineage, and which can involve the inheritance of property and titles.

  9. Royal descent - Wikipedia

    en.wikipedia.org/wiki/Royal_descent

    Royal descent plays an important role in many African societies; authority and property tend to be lineally derived. Among tribes which recognize a single ruler, the hereditary blood line of the rulers (who early European travelers described as kings, queens, princes, etc., using the terminology of European monarchy) is akin to a dynasty . [ 15 ]