how did kleinfelters get its name????????

Answer 1

This was so easy to look up I feel guilty posting it but here you go:

"Klinefelter's syndrome, 47XXY or XXY syndrome is a condition caused by a chromosome nondisjunction in males; affected individuals have a pair of X sex chromosomes instead of just one, and are associated with additional risk for some medical conditions. It is named after Dr. Harry Klinefelter, a medical researcher at Massachusetts General Hospital, Boston, Massachusetts, who first described this condition in 1942. The condition exists in roughly 1 out of every 500 males."

Answer 2

If you mean Klinefelter syndrome (XXY syndrome, a chromosomal condition affecting male sexual development), it is named after Dr. Henry Klinefelter who first described it.

" In 1942, Klinefelter et al published a report on 9 men who had enlarged breasts, sparse facial and body hair, small testes, and inability to produce sperm. In 1959, these men with Klinefelter syndrome were discovered to have an extra sex chromosome (genotype XXY) instead of the usual male sex complement (genotype XY). " (from eMedicine; see link below).