Autism spectrum disorders are a large group of neurodevelopmental impairments that affect language, social and cognition. What type of studies could you carry out to get evidence of the genetic basis of ASD?
Maybe the biggest advance in understanding autism pathophysiology has been appreciating an significant genetic link to the etiology of ASD. Three key areas of evidence support genetic etiology in ASD: Twin studies, comparison of monozygotic twins (MZ) and dizogotic twins (DZ), family studies measuring the prevalence of autism in first-degree relatives of affected probands versus population, and studies of unusual genetic syndromes with a comorbid autism diagnosis.
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