Mason Turner Has Had "Mood Swings" for About the Past

question 16

Multiple Choice

Mason Turner has had "mood swings" for about the past five years. His "high" periods are relatively short-lived and are characterized by an increase in goal-directed activity and an inflated sense of self-esteem. When Mason experiences "low" periods, they, too, are of short duration and characterized by a depressed mood and subsequent fatigue. While Mason does not consider his present problems severe, his wife, Yvonne, feels that he might need some help. Given these symptoms, Mason is most likely suffering from which mood disorder?

• A)Double depression
• B)Persistent depressive disorder dysthymia)
• C)Bipolar I disorder
• D)Cyclothymic disorder

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Definitions:

Type AB Blood

A blood group characterized by the presence of both A and B antigens on the surface of red blood cells, resulting in the capability to accept A, B, AB, and O blood types.

Codominance

A genetic scenario where both alleles for a trait are fully expressed in the phenotype of the heterozygotes, showing both characteristics independently.

Phenotypic Effects

Observable traits or characteristics of an organism resulting from the interaction of its genotype with the environment.

Heterozygous

Having two different alleles for a single trait.