Multifactorial Traits and Autism

Multifactorial Traits and Autism

Using the South University Online Library or the Internet, research the characteristics of multifactorial traits and autism.

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Based on your research, complete the discussions on the following topics:

• Multifactorial traits
• Autism

Multifactorial Traits

Traits and genetic disorders are influenced in one way or another by the environment. On the other hand, the heritability of a disorder examines the variations in multifactorial traits due to genetics in a particular population and focuses on the genetic component of variations seen in a trait.

• Select a genetic disorder caused by a single-gene trait that is multifactorial. Explain how your chosen genetic disorder is influenced by the environment.
• Select two diseases—one with high heritability and one with low heritability—and describe the genetic components of the diseases. In your opinion, do the individuals who inherit these diseases have a high mortality, or death, rate? Why?

Autism

Autism has been widely debated and discussed in recent years. Many researchers argue that autism is a genetic disorder, while others debate that autism is a result of environmental influences.

• Rates of autism have been on the rise in the United States since 1990. Do these findings support the claim that the disease has a genetic basis? If so, how? If not, why not?
• Can environmental influences explain these findings? Why or why not?
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