What is the approximate rate of occurrence of males who have an extra Y chromosome, resulting in the configuration XYY?
A) Zero, because this disorder affects females only
B) One in 50 to 70
C) One in 700 to 1,000
D) One in 3

Question

Quizplus · Accepted Answer

The approximate rate of occurrence of males with an extra Y chromosome (XYY syndrome) is about one in 700 to 1,000 male births. This genetic condition affects only males and is not as rare as some other chromosomal abnormalities.

What Is the Approximate Rate of Occurrence of Males Who