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Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parent" or parents. There are two forms of reproduction: asexual and sexual .
Many individuals are part of two nuclear families in their lives: the family of origin in which they are offspring, and the family of procreation in which they are a parent. [7] Alternative definitions have evolved to include family units with same-sex parents, [8] adoption, and perhaps additional adult relatives who take on a cohabiting ...
As a definition, "a family or domestic group is matrifocal when it is centred on a woman and her children. In this case, the father(s) of these children are intermittently present in the life of the group and occupy a secondary place. The children's mother is not necessarily the wife of one of the children's fathers."
This is an accepted version of this page This is the latest accepted revision, reviewed on 6 January 2025. Procreative biological processes of humanity Part of a series on Sex Biological terms Sexual dimorphism Sexual differentiation Feminization Virilization Sex-determination system XY XO ZW ZO Temperature-dependent Haplodiploidy Heterogametic sex Homogametic sex Sex chromosome X chromosome Y ...
A multi-generational extended family of Eastern Orthodox priest in Jerusalem, c. 1893. Family is a group of people affiliated by consanguinity (by recognized birth), affinity (by marriage), or co-residence/shared consumption (see Nurture kinship). In most societies, it is the principal institution for the socialization of children.
A family of choice refers to a group of people bound by intentional and chosen relationships with a focus on mutual love, trust, and commitment. This is in contrast to a " family of origin ", the biological or adoptive family into which a person is born or raised.
the preference of family size, which influences that of the children through early adulthood. [26] Likewise, the extended family influences fertility intentions, with increased numbers of nephews and nieces increasing the preferred number of children. [25] [27] These effects may be observed in the case of Mormon or modern Israeli demographics.
In medicine, the definition of fertility is "the capacity to establish a clinical pregnancy." [24] Women have hormonal cycles which determine when they can achieve pregnancy. The cycle is approximately twenty-eight days long, with a fertile period of five days per cycle, but can deviate greatly from this norm.