The range and standard deviation are measures of

The short version of an androgen receptor gene occurs more frequently in men who

A) have altruistic tendencies. B) have high levels of empathy. C) live in a culture of honor. D) have been convicted of a violent crime.

In many important psychological characteristics, a number of genes make a small contribution to the trait in question. This process is known as ________

a. polygenic inheritance b. cumulative inheritance c. genetic dominance d. natural selection