Recent Research Using Genetic Linkage Studies Has Looked for Possible

question 146

Multiple Choice

Recent research using genetic linkage studies has looked for possible patterns of inheritance of bipolar disorders. The results suggest that:

• A) there does not appear to be a genetic component in the development of bipolar disorders.
• B) several different genes may establish a predisposition to develop bipolar disorders.
• C) the close relatives of people with bipolar disorders have an 80 percent chance of having one of these disorders.
• D) according to careful studies in other countries, environmental factors are of far greater importance than genetic factors in the development of bipolar disorders.

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Definitions:

Flexor

A type of muscle that decreases the angle between bones on two sides of a joint, allowing limbs to be bent.

Epitrochlearis

A muscle in some mammals that assists in the movement of the forearm, not typically found or well-defined in humans.

Palmaris Longus

A muscle in the forearm that aids in flexing the wrist and tenses the palmar fascia.

Depress

To lower in amount, degree, or intensity; often used in terms of lowering mood or suppressing an activity.