One Parent Is Heterozygous for a Certain Known Disease and Is

question 112

Multiple Choice

One parent is heterozygous for a certain known disease and is unaffected.The other parent is homozygous normal.Under which circumstance would DNA testing be of value for their newborn son to ensure he does not suffer complications due to the disease?

• A) The disease is PKU.
• B) The disease is metabolic.
• C) The disease is neurological.
• D) The disease is X-linked.
• E) The disease is autosomal.

---

Definitions:

Nurses' Health Study

A long-term research project investigating the factors that influence women's health.

Correlational Research

A scientific research methodology that examines the relationship between two or more variables to determine if a correlation exists.

Causal Research

A type of investigation aimed at determining cause-and-effect relationships.

Power Analysis

A statistical method used to determine the smallest sample size needed to detect an effect of a given size with a certain degree of confidence.