In the Atkins case, the United States Supreme Court held that it was unconstitutional to execute a person who was intellectually disabled (mentally retarded). An IQ score is evidence that can be considered in making the determination of whether a particular individual is intellectually disabled. Certain prosecution experts seek to add points to the scores of African Americans as a form of "ethnic adjustment" making those individuals more susceptible to being put to death. This article examines the molecular biology issues that may have an effect on whether such points should properly be added.