The Genetics of Autism

Jun 14, 2013 | Posted by: roboblogger | Full story: American Institute of Biological Sciences

Over the last decade the genomics revolution has profoundly changed our understanding of autism and autism spectrum disorders .

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Since: Jan 07

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#1
Jun 14, 2013
 

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"Autism is known from twin studies to have a heritability as high as 90% or as little as 40%, meaning that 40 to 90% of the variation in autistic traits in a studied population is due to genetics."

" A sizable amount is attributable to the environment, and this influence is poorly understood. A new area of genomic research called epigenetics is starting to demonstrate how the environment can alter the activity of genes. Whereas the structure or sequence of a gene is fairly stable, the function of the gene varies over time and the course of development. It is by altering gene function through chemical modifications, known as epigenetic marking, that environment exerts its influence on genes while leaving the genes’ essential structure intact."

Keep in mind when they talk about environment, they're not talking about medical intervention such as vaccines. Environment refers to daily exposures, such as the example given.

" A disease can be caused by a mutation in one or several genes yet be sporadic. In such cases, the mutations just happen—often as a result of mistakes during routine copying of DNA as sperm or eggs are produced. Such mistakes are often, but not always, repaired by the cell. If they escape repair, the resulting mutations are said to be de novo (or new) because they were not inherited from the parental generation, and they may cause disease in the offspring in ways that cannot easily be predicted. By contrast, mutations that lead to well-recognized Mendelian genetic disorders, such as sickle cell anemia, cystic fibrosis, or Huntington’s disease, are typically inherited from one or both parents and often lead to distinctive and predictable disease patterns in families."
That oughtta help anti vaxxers understand the difference.
frienDUH

Winnipeg, Canada

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Jun 16, 2013
 

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Garbage. Vaccines cause the genetic damage.
ric99

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Jun 16, 2013
 

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As de novo mutations occur as a result of copying mistakes in the egg or sperm cells, how on Earth could it be caused by a vaccine administered months after birth, idiot.

Perhaps the Winnipeg dummy thinks he knows more than highly qualified geneticists about de novo mutations. No chance.

Next he'll be telling us that all geneticists are controlled by Pharma. Is there anyone in the world (apart from anti-vaxxer nutcases) who isn't controlled by Pharma, according to the dummy?
dic99

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Jun 17, 2013
 

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ric99 wrote:
As de novo mutations occur as a result of copying mistakes in the egg or sperm cells, how on Earth could it be caused by a vaccine administered months after birth, idiot.
Perhaps the Winnipeg dummy thinks he knows more than highly qualified geneticists about de novo mutations. No chance.
Next he'll be telling us that all geneticists are controlled by Pharma. Is there anyone in the world (apart from anti-vaxxer nutcases) who isn't controlled by Pharma, according to the dummy?
Read the new AMISH study imbecile?

Since: Jan 07

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Jun 17, 2013
 

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Talk about gullible! Winnipeg was taken, again! There is no new Amish study! Kristan T. Harris is misrepresenting Olmsted's 2005 series as new!! And of course Olmsted's Amish articles were bogus to begin with which is why it never went any where since then, and only consisted of communities in PA!

If anything, the Amish demomstrates genetics quite well!
DUH IM friend

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Jun 17, 2013
 

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friend wrote:
Talk about gullible! Winnipeg was taken, again! There is no new Amish study! Kristan T. Harris is misrepresenting Olmsted's 2005 series as new!! And of course Olmsted's Amish articles were bogus to begin with which is why it never went any where since then, and only consisted of communities in PA!
If anything, the Amish demomstrates genetics quite well!
Try speaking English.

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