Male phenotype,sterility,small penis,breast enlargement in 40 percent of the cases,and average IQ scores characterize the individual with a sex chromosome count of:

Question

Quizplus · Accepted Answer

This individual has Klinefelter syndrome, which occurs when a male has an extra X chromosome (XXY). This condition can lead to sterility, small penis, breast enlargement, and lower IQ scores.

Male Phenotype,sterility,small Penis,breast Enlargement in 40 Percent of the Cases,and