Navigation Links
Genes may explain why children who live without dads have earlier sex
Date:9/14/2009

Previous research has found that children raised in homes without a biological father have sex earlier than children raised in traditional nuclear families. Now a new study that used a novel and complex design to investigate why this is so challenges a popular explanation of the reasons.

Among prior explanations of why children who live in homes without fathers have sex earlier are that early childhood stress accelerates children's physical development, that children who see their parents dating may start dating earlier, and that it's harder for a single parent to monitor and supervise children's activities and peers. All of these are environmental explanations.

"Our study found that the association between fathers' absence and children's sexuality is best explained by genetic influences, rather than by environmental theories alone," according to Jane Mendle, assistant professor of psychology at the University of Oregon, who led the study.

Conducted by researchers at the University of Oregon, the University of Virginia, the University of Chicago, the University of Indiana, Columbia University, and the University of Oklahoma, the study appears in the September/October 2009 issue of the journal Child Development.

Mendle and her colleagues looked at more than 1,000 cousins ages 14 and older from the National Longitudinal Survey of Youth. The study design tested for genetic influences as well as factors such as poverty, educational opportunities, and religion. It compared children who were related in different ways to each other, and who differed in whether they'd lived with their fathers. The more genes the children shared, the more similar their ages of first intercourseregardless of whether or not the children personally had an absent father. This finding, the researchers say, suggests that environmental theories don't fully explain the puzzle. Instead, genetic influence can help us understand the tie between fathers' absence and early sex.

"While there's clearly no such thing as a 'father absence gene,' there are genetic contributions to traits in both moms and dads that increase the likelihood of earlier sexual behavior in their children," notes Mendle. "These include impulsivity, substance use and abuse, argumentativeness, and sensation seeking.

"These traits get passed down from parents to children, resulting in a situation known as 'passive gene-environment correlation,' because the same genetic factors that influence when children first have intercourse also affect the likelihood of their growing up in a home without a dad."


'/>"/>

Contact: Sarah Hutcheon
shutcheon@srcd.org
202-289-7905
Society for Research in Child Development
Source:Eurekalert

Related biology news :

1. Gene regulation, not just genes, is what sets humans apart
2. Interaction of just 2 genes governs coloration patterns in mice
3. Muscle mass: Scientists identify novel mode of transcriptional regulation during myogenesis
4. Study finds blocking angiogenesis signaling from inside cell may lead to serious health problems
5. Smoking turns on genes -- permanently
6. Genes, Environment and Health Initiative invests in genetic studies, environmental monitoring
7. Hebrew SeniorLife researchers search for aging, osteoporosis genes
8. UT Southwestern researchers identify hundreds of genes controlling female fertility
9. Genes and environment grant funds close look at nature-nurture overlap in common diseases
10. Jumping genes could make for safer gene delivery system
11. Genes from the father facilitate the formation of new species
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/22/2016)... ANGELES , June 22, 2016 /PRNewswire/ ... identity management and verification solutions, has partnered ... edge software solutions for Visitor Management, Self-Service ... provides products that add functional enhancements ... partnership provides corporations and venues with an ...
(Date:6/20/2016)... 2016 Securus Technologies, a leading provider ... public safety, investigation, corrections and monitoring announced that ... has secured the final acceptance by all three ... Access Systems (MAS) installed. Furthermore, Securus will have ... installed by October, 2016. MAS distinguishes between legitimate ...
(Date:6/9/2016)... innovation leader in attendance control systems is proud to announce the introduction of fingerprint ... sure the right employees are actually signing in, and to even control the opening ... ... ... Photo ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... Houston Methodist Willowbrook Hospital has signed ... to serve as their official health care provider. ... will provide sponsorship support, athletic training services, and ... volunteers, athletes and families. "We are ... and to bring Houston Methodist quality services and ...
(Date:6/23/2016)... ... June 23, 2016 , ... Supplyframe, the Industry Network ... Supplyframe Design Lab . Located in Pasadena, Calif., the Design Lab’s mission is ... projects are designed, built and brought to market. , The Design Lab is ...
(Date:6/23/2016)... 23, 2016 Andrew ... http://doi.org/10.17925/OHR.2016.12.01.22 Published recently in ... journal from touchONCOLOGY, Andrew D Zelenetz , ... cancer care is placing an increasing burden on ... biologic therapies. With the patents on many biologics ...
(Date:6/23/2016)... 22, 2016  Amgen (NASDAQ: AMGN ) ... QB3@953 life sciences incubator to accelerate the development ... laboratory space at QB3@953 was created to help high-potential ... for many early stage organizations - access to laboratory ... Amgen launched two "Amgen Golden Ticket" awards, providing each ...
Breaking Biology Technology: