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Non-Mendelian Inheritance

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Questions and Answers

What is the primary difference between Mendelian and multifactorial disorders?

The number of genes involved in the disorder
The age of onset of the disease
The severity of the disease
The presence or absence of environmental influence (correct)

What is an example of a multifactorial disease that is influenced by many genes?

Cancer
Cardiovascular disease (correct)
Bipolar disorder
Alcoholism

Which of the following is a way to reduce the risk of heart disease and some types of cancer?

Surgery
Exercise and a healthful diet (correct)
Medication
Genetic testing

What is the current understanding of the genetic contributions to most multifactorial diseases?

The genetic contributions are not well understood (A) Signup and view all the answers

Which of the following is a characteristic of multifactorial disorders?

Have a genetic component plus a significant environmental influence (A) Signup and view all the answers

What is the term for the study of the interaction between genes and environment?

None of the above (D) Signup and view all the answers

What is the role of lifestyle in multifactorial disorders?

It has a significant impact on the phenotype (C) Signup and view all the answers

Which of the following is an example of a healthful behavior that can reduce the risk of heart disease?

Exercise (C) Signup and view all the answers

What is the best public health strategy for multifactorial diseases?

Educating people about the importance of environmental factors and promoting healthful behavior (A) Signup and view all the answers

What is the term for the inheritance pattern of multifactorial disorders?

Polygenic (A) Signup and view all the answers