With Respect to the Genetic Components of Mood Disorders, It

question 111

Multiple Choice

With respect to the genetic components of mood disorders, it has been shown that __________.

• A) concordance rates for both identical and fraternal twins are the same
• B) genetic factors play a stronger role in bipolar than unipolar disorder
• C) mood disorders are generally inherited through matrilinear descent
• D) the same genetic factors give rise to both uni- and bipolar disorders

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Definitions:

Natural Selection

The evolutionary process in which individuals with genetically influenced traits that are adaptive in a particular environment tend to survive and to reproduce in greater numbers than do other individuals; as a result, their traits become more common in the population.

Learning

The process of acquiring new understanding, knowledge, behaviors, skills, values, attitudes, and preferences.

Adaptation

The process by which a species becomes fitted to its environment; it is the result of natural selection acting upon heritable variation.

Genes

Units of heredity made up of DNA that are responsible for determining the characteristics of an organism.