Reading through some archived curricula, it was in a 1993 practice exam, at least. [0] I'm pretty surprised as well. [0] http://www.csun.edu/science/biology/AP

Reading through some archived curricula, it was in a 1993 practice exam, at least. [0] I'm pretty surprised as well. [0] http://www.csun.edu/science/biology/AP_biology/text%20files/genetics.txt http://www.csun.edu/science/biology/AP_biology/text%20files/...