The Role of Hereditary Factors in Autism Spectrum Disorders

question 136

Multiple Choice

The role of hereditary factors in autism spectrum disorders

• A)has been based on large-scale studies of affected children and their parents.
• B)was emphasized more when the disorder was first defined, several decades ago.
• C)has recently been confirmed by twin studies.
• D)is about equal in size to that of environmental factors, such as parenting.

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