Parental Test
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A parent is either the
progenitor In genealogy, a progenitor (rarer: primogenitor; or ''Ahnherr'') is the founder (sometimes one that is legendary) of a family, line of descent, gens, clan, tribe, noble house, or ethnic group.. Ebenda''Ahnherr:''"Stammvater eines Geschlec ...
of a
child A child () is a human being between the stages of childbirth, birth and puberty, or between the Development of the human body, developmental period of infancy and puberty. The term may also refer to an unborn human being. In English-speaking ...
or, in
human Humans (''Homo sapiens'') or modern humans are the most common and widespread species of primate, and the last surviving species of the genus ''Homo''. They are Hominidae, great apes characterized by their Prehistory of nakedness and clothing ...
s, it can refer to a caregiver or
legal guardian A legal guardian is a person who has been appointed by a court or otherwise has the legal authority (and the corresponding duty) to make decisions relevant to the personal and property interests of another person who is deemed incompetent, ca ...
, generally called an adoptive parent or step-parent. Parents who are progenitors are
first-degree relatives 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 th ...
and have 50% genetic meet. A
female An organism's sex is female ( symbol: ♀) if it produces the ovum (egg cell), the type of gamete (sex cell) that fuses with the male gamete (sperm cell) during sexual reproduction. A female has larger gametes than a male. Females and ...
can also become a parent through
surrogacy Surrogacy is an arrangement whereby a woman gets pregnant and gives birth on behalf of another person or couple who will become the child's legal parents after birth. People pursue surrogacy for a variety of reasons such as infertility, danger ...
. Some parents may be
adoptive Adoption is a process whereby a person assumes the parenting of another, usually a child, from that person's biological or legal parent or parents. Legal adoptions permanently transfer all rights and responsibilities, along with filiation, from ...
parents, who nurture and raise an offspring, but are not related to the child.
Orphan An orphan is a child whose parents have died, are unknown, or have permanently abandoned them. It can also refer to a child who has lost only one parent, as the Hebrew language, Hebrew translation, for example, is "fatherless". In some languages ...
s without adoptive parents can be raised by their
grandparent Grandparents, individually known as grandmother and grandfather, or Grandma and Grandpa, are the parents of a person's father or mother – paternal or maternal. Every sexually reproducing living organism who is not a genetic chimera has a maxi ...
s or other
family member Family (from ) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictability, structure, and safety as ...
s. A parent can also be elaborated as an
ancestor An ancestor, also known as a forefather, fore-elder, or a forebear, is a parent or ( recursively) the parent of an antecedent (i.e., a grandparent, great-grandparent, great-great-grandparent and so forth). ''Ancestor'' is "any person from ...
removed one
generation A generation is all of the people born and living at about the same time, regarded collectively. It also is "the average period, generally considered to be about 20–⁠30 years, during which children are born and grow up, become adults, and b ...
. With recent medical advances, it is possible to have more than two biological parents. Examples of third biological parents include instances involving surrogacy or a third person who has provided DNA samples during an assisted reproductive procedure that has altered the recipients' genetic material. The most common types of parents are
mothers A mother is the female parent of a child. A woman may be considered a mother by virtue of having given birth, by raising a child who may or may not be her biological offspring, or by supplying her ovum for fertilisation in the case of gestat ...
,
fathers A father is the male parent of a child. Besides the paternal bonds of a father to his children, the father may have a parental, legal, and social relationship with the child that carries with it certain rights and obligations. A biological fathe ...
,
step-parents A stepfamily (sometimes called a bonus family) is a family where at least one parent has children who are not biologically related to their spouse. Either parent, or both, may have children from previous relationships or marriages. Two known cl ...
, and
grandparents Grandparents, individually known as grandmother and grandfather, or Grandma and Grandpa, are the parents of a person's father or mother – paternal or maternal. Every sexually reproducing living organism who is not a genetic chimera has a m ...
. A mother is "a woman in relation to a child or children to whom she has given birth." The extent to which it is socially acceptable for a parent to be involved in their offspring's life varies from culture to culture, however one that exhibits too little involvement is sometimes said to exhibit
child neglect Child neglect is an act of caregivers (e.g., parents) that results in depriving a child of their basic needs, such as the failure to provide adequate supervision, health care, clothing, or housing, as well as other physical, emotional, social, ...
, while one that is too involved is sometimes said to be
overprotective A helicopter parent (also called a cosseting parent or simply a cosseter) is a parent considered overattentive and overly fearful for their child, particularly outside the home and at educational institutions. Helicopter parents are so named bec ...
, cosseting, nosey, or intrusive.


Types


Biological

A person's biological parents are the persons from whom the individual inherits their
gene In biology, the word gene has two meanings. The Mendelian gene is a basic unit of heredity. The molecular gene is a sequence of nucleotides in DNA that is transcribed to produce a functional RNA. There are two types of molecular genes: protei ...
s. The term is generally only used if there is a need to distinguish an individual's foster parents from their biological parents, For example, an individual whose father has remarried may call the father's new wife their
stepmother A stepmother, stepmum or stepmom is a female non-biological parent married to one's preexisting parent. Children from her spouse's previous unions are known as her stepchildren. A stepmother-in-law is a stepmother of one's spouse. Culture Ste ...
and continue to refer to their mother normally, though someone who has had little or no contact with their biological mother may address their
foster parent Foster care is a system in which a minor has been placed into a ward, group home (residential child care community or treatment centre), or private home of a state- certified caregiver, referred to as a "foster parent", or with a family memb ...
as their mother, and their biological mother as such, or perhaps by her first name.


Mother

A mother is a female who has a maternal connection with another individual, whether arising from conception, by giving
birth Birth is the act or process of bearing or bringing forth offspring, also referred to in technical contexts as parturition. In mammals, the process is initiated by hormones which cause the muscular walls of the uterus to contract, expelling the f ...
to, or raising the individual in the role of a parent. More than one female may have such connections with an individual. Because of the complexity and differences of a mother's social, cultural, and religious definitions and roles, it is challenging to define a mother to suit a universally accepted definition. The utilization of a surrogate mother may result in explication of there being two biological mothers.


Father

A father is a male parent of any type of offspring. It may be the person who shares in the raising of a child or who has provided the biological material, the
sperm Sperm (: sperm or sperms) is the male reproductive Cell (biology), cell, or gamete, in anisogamous forms of sexual reproduction (forms in which there is a larger, female reproductive cell and a smaller, male one). Animals produce motile sperm ...
, which results in the birth of the child.


Grandparent

Grandparents are the parents of a person's own parent, whether that be a father or a mother. Every sexually reproducing creature who is not a
genetic chimera A genetic chimerism or chimera ( or ) is a single organism composed of cells of different genotypes. Animal chimeras can be produced by the fusion of two (or more) embryos. In plants and some animal chimeras, mosaicism involves distinct typ ...
has a maximum of four
gene In biology, the word gene has two meanings. The Mendelian gene is a basic unit of heredity. The molecular gene is a sequence of nucleotides in DNA that is transcribed to produce a functional RNA. There are two types of molecular genes: protei ...
tic grandparents, eight genetic great-grandparents, sixteen genetic great-great-grandparents and so on. Rarely, such as in the case of sibling or half-sibling
incest Incest ( ) is sexual intercourse, sex between kinship, close relatives, for example a brother, sister, or parent. This typically includes sexual activity between people in consanguinity (blood relations), and sometimes those related by lineag ...
, these numbers are lower.


Paternity issues

A paternity test is conducted to prove paternity, that is, whether a male is the biological father of another individual. This may be relevant in view of
rights Rights are law, legal, social, or ethics, ethical principles of freedom or Entitlement (fair division), entitlement; that is, rights are the fundamental normative rules about what is allowed of people or owed to people according to some legal sy ...
and duties of the father. Similarly, a maternity test can be carried out. This is less common, because at least during
childbirth Childbirth, also known as labour, parturition and delivery, is the completion of pregnancy, where one or more Fetus, fetuses exits the Womb, internal environment of the mother via vaginal delivery or caesarean section and becomes a newborn to ...
and
pregnancy Pregnancy is the time during which one or more offspring gestation, gestates inside a woman's uterus. A multiple birth, multiple pregnancy involves more than one offspring, such as with twins. Conception (biology), Conception usually occurs ...
, except in the case of a pregnancy involving
embryo transfer Embryo transfer refers to a step in the process of assisted reproduction in which embryos are placed into the uterus of a female with the intent to establish a pregnancy. This technique - which is often used in connection with in vitro fertili ...
or
egg donation Egg donation (also referred to as "oocyte donation") is the process by which a woman donates eggs to enable another woman to conceive as part of an assisted reproduction treatment or for biomedical research. For assisted reproduction purposes, e ...
, it is obvious who the
mother A mother is the female parent of a child. A woman may be considered a mother by virtue of having given birth, by raising a child who may or may not be her biological offspring, or by supplying her ovum for fertilisation in the case of ges ...
is. However, it is used in a number of events such as legal battles where a person's maternity is challenged, where the mother is uncertain because she has not seen her child for an extended period of time, or where deceased persons need to be identified. Although not constituting completely reliable evidence, several congenital traits such as attached
earlobe The human earlobe (''lobulus auriculae''), the lower portion of the outer ear, is composed of tough areolar and adipose connective tissues, lacking the firmness and elasticity of the rest of the auricle (the external structure of the ear). In ...
s, a
widow's peak A widow's peak is a V-shaped point in the hairline in the center of the forehead. Widow's Peak may also refer to: *'' Widows' Peak'', a 1994 British-Irish film *'' Widowspeak'', an American band ** ''Widowspeak'' (Widowspeak album), 2011 * ''Wido ...
, or the
cleft chin The chin is the forward pointed part of the anterior mandible ( mental region) below the lower lip. A fully developed human skull has a chin of between 0.7 cm and 1.1 cm. Evolution The presence of a well-developed chin is considered to be one ...
, may serve as tentative indicators of (non-) parenthood as they are readily observable and inherited via autosomal-dominant genes. A more reliable way to ascertain parenthood is via DNA analysis (known as
genetic fingerprinting DNA profiling (also called DNA fingerprinting and genetic fingerprinting) is the process of determining an individual's deoxyribonucleic acid (DNA) characteristics. DNA analysis intended to identify a species, rather than an individual, is cal ...
of individuals), although older methods have included ABO blood group typing, analysis of various other
protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residue (biochemistry), residues. Proteins perform a vast array of functions within organisms, including Enzyme catalysis, catalysing metab ...
s and
enzyme An enzyme () is a protein that acts as a biological catalyst by accelerating chemical reactions. The molecules upon which enzymes may act are called substrate (chemistry), substrates, and the enzyme converts the substrates into different mol ...
s, or using
human leukocyte antigen The human leukocyte antigen (HLA) system is a complex of genes on chromosome 6 in humans that encode cell-surface proteins responsible for regulation of the immune system. The HLA system is also known as the human version of the major histo ...
s. The current techniques for paternity testing use
polymerase chain reaction The polymerase chain reaction (PCR) is a method widely used to make millions to billions of copies of a specific DNA sample rapidly, allowing scientists to amplify a very small sample of DNA (or a part of it) sufficiently to enable detailed st ...
and
restriction fragment length polymorphism In molecular biology, restriction fragment length polymorphism (RFLP) is a technique that exploits variations in homologous DNA sequences, known as polymorphisms, populations, or species or to pinpoint the locations of genes within a sequence. T ...
. For the most part, however, genetic fingerprinting has all but taken over all the other forms of testing.


Roles and responsibilities


Guardianship

A legal guardian is a person who has the legal authority (and the corresponding duty) to care for the personal and property interests of another person, called a ward. Guardians are typically used in three situations: guardianship for an incapacitated senior (due to old age or infirmity), guardianship for a minor, and guardianship for developmentally disabled adults. Most countries and states have laws that provide that the parents of a minor child are the legal guardians of that child, and that the parents can designate who shall become the child's legal guardian in the event of death, subject to the approval of the court. Some jurisdictions allow a parent of a child to exercise the authority of a legal guardian without a formal court appointment. In such circumstances the parent acting in that capacity is called the natural guardian of that parent's child.


Parenting

Parenting Parenting or child rearing promotes and supports the physical, cognitive, social, emotional, and educational development from infancy to adulthood. Parenting refers to the intricacies of raising a child and not exclusively for a biologica ...
or child rearing is the process of promoting and supporting the physical,
emotional Emotions are physical and mental states brought on by neurophysiology, neurophysiological changes, variously associated with thoughts, feelings, behavior, behavioral responses, and a degree of pleasure or suffering, displeasure. There is ...
, social, financial, and
intellectual development Cognitive development is a field of study in neuroscience and psychology focusing on a child's development in terms of information processing, conceptual resources, perceptual skill, language learning, and other aspects of the developed adult bra ...
of a
child A child () is a human being between the stages of childbirth, birth and puberty, or between the Development of the human body, developmental period of infancy and puberty. The term may also refer to an unborn human being. In English-speaking ...
from
infancy In common terminology, a baby is the very young offspring of adult human beings, while infant (from the Latin word ''infans'', meaning 'baby' or 'child') is a formal or specialised synonym. The terms may also be used to refer to juveniles of ...
to
adult An adult is an animal that has reached full growth. The biological definition of the word means an animal reaching sexual maturity and thus capable of reproduction. In the human context, the term ''adult'' has meanings associated with social an ...
hood. Parenting refers to the aspects of raising a child aside from the biological relationship.


Gender and gender mix

A child has at least one biological
father A father is the male parent of a child. Besides the paternal bonds of a father to his children, the father may have a parental, legal, and social relationship with the child that carries with it certain rights and obligations. A biological fat ...
and at least one biological
mother A mother is the female parent of a child. A woman may be considered a mother by virtue of having given birth, by raising a child who may or may not be her biological offspring, or by supplying her ovum for fertilisation in the case of ges ...
, but not every
family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
is a traditional
nuclear family A nuclear family (also known as an elementary family, atomic family, or conjugal family) is a term for a family group consisting of parents and their children (one or more), typically living in one home residence. It is in contrast to a single ...
. There are many variants, such as
adoption Adoption is a process whereby a person assumes the parenting of another, usually a child, from that person's biological or legal parent or parents. Legal adoptions permanently transfer all rights and responsibilities, along with filiation, fro ...
,
shared parenting Shared parenting, shared residence, joint residence, shared custody, joint physical custody, equal parenting time (EPT) is a child custody arrangement after divorce or separation, in which both parents share the responsibility of raising their ...
, stepfamilies, and
LGBT parenting Same-sex parenting is parenting of children by same-sex couples generally consisting of gay, lesbian, or bisexual people who are often in civil partnerships, domestic partnerships, civil unions, or same-sex marriages. Opponents of same-sex ...
, over which there has been controversy. The social science literature rejects the notion that there is an optimal gender mix of parents or that children and adolescents with same-sex parents suffer any developmental disadvantages compared with those with two opposite-sex parents. The professionals and the major associations now agree there is a well-established and accepted consensus in the field that there is no optimal gender combination of parents. The family studies literature indicates that it is family processes (such as the quality of parenting and relationships within the family) that contribute to determining children's well-being and "outcomes", rather than family structures, per se, such as the number, gender, sexuality and co-habitation status of parents.


Genetics


Parent–offspring conflict

An offspring who hates their father is called a misopater, one that hates their mother is a misomater, while a parent that hates their offspring is a misopedist. Parent–offspring conflict describes the
evolutionary conflict In evolutionary biology, an evolutionary arms race is an ongoing struggle between competing sets of co-evolving genes, phenotypic and behavioral traits that develop escalating adaptations and counter-adaptations against each other, resembling the ...
arising from differences in optimal fitness of parents and their
offspring In biology, offspring are the young creation of living organisms, produced either by sexual reproduction, sexual or asexual reproduction. Collective offspring may be known as a brood or progeny. This can refer to a set of simultaneous offspring ...
. While parents tend to maximize the number of offspring, the offspring can increase their fitness by getting a greater share of
parental investment Parental investment, in evolutionary biology and evolutionary psychology, is any parental expenditure (e.g. time, energy, resources) that benefits offspring.Clutton-Brock, T.H. 1991. ''The Evolution of Parental Care''. Princeton, NJ: Princeton ...
often by competing with their
sibling A sibling is a relative that shares at least one parent with the other person. A male sibling is a brother, and a female sibling is a sister. A person with no siblings is an only child. While some circumstances can cause siblings to be raised ...
s. The theory was proposed by
Robert Trivers Robert Ludlow "Bob" Trivers (; born February 19, 1943) is an American evolutionary biologist and sociobiologist. Trivers proposed the theories of reciprocal altruism (1971), parental investment (1972), facultative sex ratio determination (197 ...
in 1974 and extends the more general
selfish gene theory The gene-centered view of evolution, gene's eye view, gene selection theory, or selfish gene theory holds that adaptive evolution occurs through the differential survival of competing genes, increasing the allele frequency of those alleles wh ...
and has been used to explain many observed biological phenomena. For example, in some
bird Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a fou ...
species, although parents often lay two eggs and attempt to raise two or more young, the strongest fledgling takes a greater share of the food brought by parents and will often kill the weaker sibling, an act known as
siblicide Siblicide (attributed by behavioural ecologist Doug Mock to Barbara M. Braun) is the killing of an infant individual by its close relatives (full or half siblings). It may occur directly between siblings or be mediated by the parents, and is dr ...
.


Empathy

David Haig has argued that human
fetal A fetus or foetus (; : fetuses, foetuses, rarely feti or foeti) is the unborn offspring of a viviparous animal that develops from an embryo. Following the embryonic stage, the fetal stage of development takes place. Prenatal development is a ...
genes would be selected to draw more resources from the mother than it would be optimal for the mother to give, a hypothesis that has received empirical support. The
placenta The placenta (: placentas or placentae) is a temporary embryonic and later fetal organ that begins developing from the blastocyst shortly after implantation. It plays critical roles in facilitating nutrient, gas, and waste exchange between ...
, for example, secretes allocrine
hormone A hormone (from the Ancient Greek, Greek participle , "setting in motion") is a class of cell signaling, signaling molecules in multicellular organisms that are sent to distant organs or tissues by complex biological processes to regulate physio ...
s that decrease the sensitivity of the mother to
insulin Insulin (, from Latin ''insula'', 'island') is a peptide hormone produced by beta cells of the pancreatic islets encoded in humans by the insulin (''INS)'' gene. It is the main Anabolism, anabolic hormone of the body. It regulates the metabol ...
and thus make a larger supply of blood sugar available to the fetus. The mother responds by increasing the level of insulin in her bloodstream, the placenta has insulin receptors that stimulate the production of insulin-degrading
enzyme An enzyme () is a protein that acts as a biological catalyst by accelerating chemical reactions. The molecules upon which enzymes may act are called substrate (chemistry), substrates, and the enzyme converts the substrates into different mol ...
s which counteract this effect.


Happiness index

In Europe, parents are generally happier than non-parents. In women, happiness increases after the first child, but having higher-order children is not associated with further increased well-being. Happiness seems to increase most in the year before and after the first childbirth.


See also


References


External links


National Educational Network, Inc. (NENI)
– free online resources for parent education, curriculum. They also have a parent blog with information about child care, after-school, trends in education, tutoring, college, grants, etc. * – A
Roman Catholic The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...
view of the position of parents. {{Authority control Family Motherhood Fatherhood Infancy Positions of authority