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Patrilineality, also known as the male line, the spear side [1] or agnatic kinship, is a common kinship system in which an individual's family membership derives from and is recorded through their father's lineage.
In anthropology, a lineage is a unilineal descent group that traces its ancestry to a demonstrably shared ancestor, known as the apical ancestor. [1] [2] [3] Lineages are formed through relationships traced either exclusively through the maternal line (matrilineage), paternal line (patrilineage), or some combination of both (). [4]
In the anthropological study of kinship, a moiety (/ ˈ m ɔɪ ə t i /) is a descent group that coexists with only one other descent group within a society.In such cases, the community usually has unilineal descent (either patri-or matrilineal) so that any individual belongs to one of the two moiety groups by birth, and all marriages take place between members of opposite moieties.
Social anthropologists have underlined that even where a social group demonstrates a strong emphasis on one or other line of inheritance (matrilineal or patrilineal), relatives who fall outside this unilineal grouping will not simply be ignored. So, a strongly patrilineal orientation will be complemented by matrilateral ties with the mother's kin.
[8] [a] [b] [c] In sociobiology, matrilocality refers to animal societies in which a pair bond is formed between animals born or hatched in different areas or different social groups, and the pair becomes resident in the female's home area or group. [citation needed]
Sib is a technical term in the discipline of anthropology which originally denoted a kinship group among Anglo-Saxon and other Germanic peoples.In an extended sense, it then became the standard term for a variety of other kinds of lineal (matrilineal or patrilineal) or cognatic (i.e.,descended through links of both sexes) kinship groups.
The Y-chromosomal most recent common ancestor is the most recent common ancestor of the Y-chromosomes found in currently living human males.. Due to the definition via the "currently living" population, the identity of a MRCA, and by extension of the human Y-MRCA, is time-dependent (it depends on the moment in time intended by the term "currently").
Unilineality is a system of determining descent groups in which one belongs to one's father's or mother's line, whereby one's descent is traced either exclusively through male ancestors (patriline), or exclusively through female ancestors (matriline). Both patrilineality and matrilineality are types of unilineal descent.