A nurse is involved in gathering information about the inheritance of mental disorders using population genetics. Which of the following would the nurse be least likely to be evaluating?
A) Concordance rates of twins
B) Occurrence among first-degree relatives
C) Risk factor analysis
D) Adoption studies
Ans: C
Risk factor analysis is evaluated when determining genetic susceptibility, that is, predicting who is more likely to experience psychiatric disorders or certain conditions. Population genetics evaluates family studies that analyze the occurrence of a disorder among first-degree relatives, twin studies that analyze the presence (or absence) of a disorder in pairs of twins using concordance rates, and adoption studies that compare the risk of a disorder developing in offspring raised in different environments.
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