In Two Twin Studies Cited in Your Textbook, It Was

question 96

Multiple Choice

In two twin studies cited in your textbook, it was found that the percentage of genetic influence ranged from about 62 to 70 percent.What does this pattern of findings suggest?

• A)The environment determines vulnerability to gender dysphoria.
• B)Genes are not an influence for gender dysphoria.
• C)Genes are only one influence for gender dysphoria.
• D)Gender dysphoria is determined solely by genetics.

---

Definitions:

Seasonal Variation

A pattern seen in statistical data that occurs at regular intervals due to seasonal factors.

Random Variation

The unpredictability in the behavior or outcome of a process, due to the influence of random factors or noise.

Cyclical Variation

Fluctuations in statistical or economic data that occur periodically over cycles, such as those caused by the business cycle.

Economic Recession

A period of temporary economic decline during which trade and industrial activities are reduced, generally identified by a fall in GDP in two successive quarters.