Your just born with it, no one really knows
no, an extra copy of chromosone 21 causes down syndrome
There is no such thing. Down syndrome and autism are separate conditions.
Aspergers Syndrome can be called: Aspergers, High-Functioning Autism, or you could just call it Autism, because it's a type of Autism.
Asperger's syndrome
Her youngest son has Down's Syndrome, but she has a nephew with autism.
Including but not limited to: Autism (ASD), Asperger's Syndrome, Kanner's Syndorome, Pervasive Developmental Disorder (PPD), and Rhett's Syndrome.
From interviews with her about the movie Mozart and the Whale in which she played a character with Asperger's Syndrome, it would seem very unlikely that she has it. She said that she learned about autism and Asperger's Syndrome when working on the movie. She also explained that "they" (people with autism or Asperger's Syndrome) see the world from a different perspective. She seems to use "they" and "their" for people with autism or Asperger's Syndrome, while using "we" and "us" for people without autism or Asperger's Syndrome, so I would assume that she does not have it.
Autism isn't a disease or a virus, thus there are no strains of autism. Autism is just autism, it was previously split up into Autism Spectrum Disorder (Classic Autism), Asperger Syndrome, Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS), childhood disintegrative disorder, and Rett Syndrome - now all are merged under the Autism Spectrum Disorder diagnosis.
Asperger's Syndrome does not seem to occur more frequently than autism. More cases of autism are diagnosed than cases of Asperger's Syndrome. However, due to differences in diagnostic criteria, the difference in occurrence of autism to Asperger's Syndrome can range from slightly more frequent to over 15 times more frequent.
When she was a child, Temple Grandin was diagnosed as having autism. If she were being diagnosed today, it would probably be labeled Asperger's Syndrome.
Response:There is a genetic component to Asperger's Syndrome. If you have a blood relative with autism or Asperger's Syndrome, you are more likely than average to have a child with autism or Asperger's Syndrome, but it does not mean that you will. If both parents have autism or Asperger's Syndrome, there is an even greater likelihood that they will have children with autism or Asperger's Syndrome, but it does not mean that all or any of their children will. Ongoing research is attempting to determine causes of autism spectrum disorders, but there are still many unanswered questions.I think that there is a strong genetic component to Asperger's Syndrome. Ever since I found that I had it I have begun to notice many of my family members who behave somewhat eccentrically. My father definitely has it. As do most of my relatives on my father's side to some degree or the other.Response:Yes! Asperger's Syndrome is definitely genetic! It's a 50-50 possibility my paternal grandmother had it, because she was "eccentric" herself!Response:There is a strong genetic component as shown in twin studies, but it doesn't necessarily mean that you will inherit it from your parents, or that your children will inherit from you, only that you have a higher likelihood of having AS than the general population if someone in your family has AS or autism.If you have one child with autism or AS, there is an increased chance that a second child will have autism or AS. If you have two children with autism or AS, it is much more likely that your other children will also have autism or AS.
I believe you are referring to Clay Marzo, who has Asperger's Syndrome, a high-functioning form of autism.