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Complete the following statement: Environmental factors pose the most risk for ASD....

During the first 1-3 years of a child's life. The period right before, during, and immediately after birth. During the first six months of a baby's life. During the mother's pregnancy.

How many genes may be involved in causing ASD?

1 25 More than 100 We have no idea, yet.

What role might different genetic mutations play in ASD?

Different mutations might cause different symptoms. Different mutations might cause the severity of different symptoms. Different mutations might increase someone's risk for ASD. All of the above.

Which of the following statements about the link between vaccines and autism is true?

Many scientific studies have shown that there is no link between autism and vaccines. The original study that proposed a link between vaccines and autism has been discredited. Scientists have not been able to replicate the results of the study that proposed a link between vaccines and autism. All of the above

Which of the following statements is true about the genetic causes of autism?

We know that there is one, definitive combination of genetic mutations that cause ASD. No one genetic mutation or combination of genetic mutations have been shown to cause ASD. Only people with ASD have genetic mutations that have been linked to ASD. Genetic mutations play no role in ASD.

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