Genetic Parenting

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Each parent passes down one copy of their genes to their children. The researchers compared genes of 21, Icelanders and their parents, and also looked at their educational levels. They found that even gene variants that were not passed down had an effect on how long the children stayed in school. This influence was 30 percent as strong as the genes that were inherited from the parents. Dr Piter Bijma , who studies animal breeding and genetics at the Wageningen University in the Netherlands, was not surprised by these results. He told The New York Times: 'Humans provide substantial care to their offspring, and so the nurture they create is very likely to have a genetic component.

The study focused on individuals and their parents, the parents are also impacted by their parents, and so on.

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However it is thought that siblings can have a similar effect on each other too. Additionally, not all parental genes have an effect through genetic nurture. The researchers did not find any evidence of genetic nurture in children's height and body weight. Among wealthy societies, genetic nurture 'might be more relevant for behavior and social achievements than for more biologically proximal outcomes such as body size,' noted Professor Koellinger and Dr Harden.

They also mention that taking genetic nurture into consideration could have important implications for social inequality and health, in future research. The study was published in the journal Science. By posting a comment you agree to abide by the BioNews terms and conditions.

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Genetic and Environmental Associations Between Child Personality and Parenting - Semantic Scholar

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Log in Register. Parental genes influence their children through 'genetic nurture' 29 January By Julianna Photopoulos. Appeared in BioNews The man drops off some sperm. Unlike in vitro fertilization today, which typically yields around eight eggs per try, the new method could result in embryos. The man and woman would get dossiers on the embryos that pass minimum tests for suitability. Out of, say, 80 suitable embryos, the couple would then choose one or two to implant.

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The technology might also help open the door to same-sex couples having children genetically related to both of them, though the additional twist of making eggs from men or sperm from women would be a huge biological challenge. More worrisome is the so-called Brad Pitt scenario: We all shed a bit of sloughed-off DNA every day, like on the lip of a coffee cup. Such discarded material could be secretly snatched up to turn an unwitting celebrity into a genetic parent.

It is a long way in the future, but real life is already creeping toward it. Some scientists are trying to make human eggs and sperm in the lab. Amander Clark of the University of California, Los Angeles, says her goal is to aid basic research into why some people are infertile. She acknowledges the technique might itself be used to treat some infertility, particularly in young people made sterile by cancer treatments. As for decoding the complete DNA library of embryos, Dr.

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So she believes no insurance company would pay for that now. Ordinary PGD has been done for decades. When a couple is known to be at risk for having a child with a specific genetic disorder, such as cystic fibrosis or sickle cell anemia, the woman undergoes a procedure to remove some eggs.

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After fertilization, some cells are plucked from the embryos and examined to identify those without carry the disease-causing abnormality. That procedure looks for a specific problem in a few embryos, not entire genomes from dozens of them.

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Richard Scott Jr. In fact, Scott and others say, even wide-ranging analysis would not provide a precise forecast of how a child will turn out. Greely agrees that predictions about behavioral traits like intelligence and athletic ability will be imprecise, because of epigenetics and because of basic uncertainties about what genes are involved and how they interact.

Many experts doubt it. Greely doubts that influencing brainpower or athleticism would be a major draw for parents.