Researchers Have Found That When an Identical Twin Has Unipolar

question 18

Multiple Choice

Researchers have found that when an identical twin has unipolar depression, there is a 38 percent chance that the other twin has already had or will eventually have the same disorder. A fraternal twin is only 20 percent likely to have the same disorder. This finding:

• A) proves that unipolar depression does not have a genetic factor.
• B) supports the idea that people may inherit a predisposition for developing unipolar depression.
• C) shows that spending time with people who have unipolar depression increases an individual's own risk for developing the same disorder.
• D) demonstrates that if one sibling has unipolar depression, other siblings of the same sex are likely to develop the same disorder.

Comprehend characteristics and outcomes for only children in terms of social adjustment and academic performance.

Understand the concept and examples of genetic disorders.

Explain the principles of inheritance, including dominant, recessive, and polygenic traits.

Recognize the role of chromosomes and genes in heredity.

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Definitions:

Maturation

The process of becoming mature or fully developed, whether referring to organisms, cells, systems, or psychological development.

Oxygenation

The process of adding oxygen to the body's systems, typically referring to the lungs transferring oxygen into the blood.

Cardiopulmonary Conditions

Health conditions that affect the heart and lungs, impacting the efficient functioning of the cardiovascular and respiratory systems.

Hemoglobin

A protein in red blood cells that carries oxygen from the lungs to the tissues of the body.