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Latest Heritability Stories

2011-07-05 13:48:42

Genetics alone cannot account for the high rates of autism among fraternal, or non-identical, twins Autism Speaks, the world's largest autism science and advocacy organization, joined in announcing significant findings from the largest known study of twins with autism spectrum disorder (ASD). This work, conducted by a consortium of renowned researchers and using material from Autism Speaks Autism Genetic Resource Exchange (AGRE) was published online today in the Archives of General...

2011-07-05 13:00:53

Environmental component may be substantial After evaluating twin pairs in which at least one child has autism or autism spectrum disorder (ASD), researchers suggest that the shared environment may play a more substantial role in development of the condition than shared genes do, according to a report published Online First today by Archives of General Psychiatry, one of the JAMA/Archives journals. Current estimates suggest that 40 of every 10,000 children have autism, and prevalence rates for...

2011-02-21 14:15:00

Research presented this week at the annual meeting of the American Association for the Advancement of Science highlights the importance of callous-unemotional traits (CU) in identifying children at risk of antisocial behavior and other adjustment problems. The research, presented by Indiana University Bloomington faculty member Nathalie M.G. Fontaine, finds that the emergence of CU traits in childhood is in most cases influenced by genetic factors, especially in boys. However, environmental...

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2010-12-07 13:27:15

Written By Stuart Wolpert, UCLA | Image Credit: Ben Hulse The ability to tolerate aggression is partly genetic, UCLA life scientists report in the first study to demonstrate a genetic component to a social network trait in a non-human population. "The ability to tolerate aggression is passed on across generations; there is genetic variation in the ability to tolerate aggression," said the study co-author Daniel T. Blumstein, professor and chair of ecology and evolutionary biology at...

2010-06-22 15:25:45

Phenotypes are measurable and/or observable traits or behaviors. The heritability of an alcohol-related phenotype depends upon the social environment within which it is measured, such as urbanicity, marital status, or religiosity. A new study of the effects of religiosity on the genetic variance of problem alcohol use in males and females has found that religiosity can moderate genetic effects on problem alcohol use during adolescence but not during early adulthood. Results will be published...

2010-06-15 16:22:01

In a study that includes nearly 2 million children born in Denmark, researchers have found that there is a higher rate of occurrence of the digestive tract disorder pyloric stenosis among twins and siblings, suggesting that this is a genetic and inherited disorder, according to the report in the June 16 issue of JAMA. Pyloric stenosis is a severe and potentially fatal condition in which apparently healthy in­fants, typically 2 to 8 weeks old, develop an inability to pass...

2010-04-29 08:35:05

Scientists are reporting what they say is compelling evidence that some powerful non-heritable, environmental factor likely plays a key role in the development of multiple sclerosis. Their finding, the cover article in the April 29, 2010 issue of Nature, results from the most advanced genomic analysis ever conducted on identical, or "monozygote," twins where one sibling has multiple sclerosis and the other does not. "Even with the very high resolution at which we sequenced the genomes of our...

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2010-04-20 12:12:53

The relative importance of genetic factors in tinnitus is low, according to new research from the Norwegian Institute of Public Health. This is the first large population-based study to measure the heritability of tinnitus. The study looked at prevalence of tinnitus and to what degree it is hereditary. Prevalence of tinnitus was 15.1 percent, which correlates well with findings from other countries. Tinnitus is a symptom with a variety of underlying causes, such as impaired hearing or...

2010-02-22 17:21:36

The ability to recognise faces is largely determined by your genes, according to new research at UCL (University College London). Published today in the Proceedings of the National Academy of Sciences, scientists found that identical twins were twice as similar to each other in terms of their ability to recognise faces, compared to non-identical twins. Researchers also found that the genetic effects that allow people to recognise faces are linked to a highly specific mechanism in the brain,...

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2010-01-20 10:13:37

Finding supports modularity of the mind theory Recognizing faces is an important social skill, but not all of us are equally good at it. Some people are unable to recognize even their closest friends (a condition called prosopagnosia), while others have a near-photographic memory for large numbers of faces. Now a twin study by collaborators at MIT and in Beijing shows that face recognition is heritable, and that it is inherited separately from general intelligence or IQ. This finding plays...


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ramage
  • Boughs or branches.
  • Warbling of birds in trees.
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