Although No Specific Gene Alteration Has Yet Been Demonstrated as a Cause

question 12

Multiple Choice

Although no specific gene alteration has yet been demonstrated as a cause for schizophrenia (SZ) , it is known to have a strong genetic component. A recent study has found a strong association between SZ and a locus at chromosome 10q22-23 in Ashkenazi Jewish and Taiwanese Han populations. Which of the following is probable?

• A)Other populations will have the same association with 10q22-23.
• B)The neuregulin-3 gene at this locus is mutated in all or most SZ cases.
• C)SZ exhibits significant genetic heterogeneity in different populations.
• D)The region on 10q must include several genes associated with SZ.
• E)People with SZ being characterized differently in various medical communities results in this association between the Jewish and Han populations.

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Definitions:

Mental Processes

Internal, covert activities of our minds, such as thinking, problem-solving, and remembering.

Frontal Lobes

The Frontal Lobes are regions of the brain located behind the forehead, responsible for important cognitive skills like emotional expression, problem solving, memory, language, judgment, and sexual behavior.

Muscle Mass

The total amount of muscle tissue in a person's body.

Cell Phone

A portable telephone device that uses wireless communication.