speteum and its causes
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The exact cause of autism spectrum disorder (ASD) is currently unknown.
It's a complex condition and may occur as a result of genetic predisposition (a natural tendency), environmental or unknown factors.
Genes
Most researchers believe that certain genes a child inherits from their parents could make them more vulnerable to developing ASD.
Cases of ASD have been known to run in families. For example, younger siblings of children with ASD can also develop the condition, and it's common for identical twins to both develop ASD.
No specific genes linked to ASD have been identified, but it may be a presenting feature of some rare genetic syndromes, including Fragile X syndrome, Williams syndrome and Angelman syndrome.
It's a complex condition and may occur as a result of genetic predisposition (a natural tendency), environmental or unknown factors.
Genes
Most researchers believe that certain genes a child inherits from their parents could make them more vulnerable to developing ASD.
Cases of ASD have been known to run in families. For example, younger siblings of children with ASD can also develop the condition, and it's common for identical twins to both develop ASD.
No specific genes linked to ASD have been identified, but it may be a presenting feature of some rare genetic syndromes, including Fragile X syndrome, Williams syndrome and Angelman syndrome.
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