University of Arizona
Biology Project: Karyotyping Activity
If you want an interactive way to practice karyotyping, this is it. There are three patient histories and karyotypes to use in diagnosing human genetic disorders. There is enough information on comparing chromosomes to get you started.
US National Library of Medicine
Medline Plus: Klinefelter's Syndrome
Dynamic site explores Klinefelter's Syndrome. Be sure to check out link to left for recent research articles.
University of Arizona
Ua: Diagnosis of Klinefelter's Syndrome
Brief tutorial dealing with Klinefelter's diagnosis. Provides illustration of nondisjunction and Klinefelter's karyotype. Information provided regarding other sex chromosome aneuploidies.
Wikimedia
Wikipedia: Klinefelter's Syndrome
Wikipedia entry for Klinefelter's Syndrome in both mammals and adults. Links are also given for additional information on related subjects.
Other
Klinefelter Organisation: About Ks
Excellent review of basic genetics and a description of Klinefelter's Syndrome.
CK-12 Foundation
Ck 12: Life Science: Chromosomal Disorders
[Free Registration/Login may be required to access all resource tools.] Some children are born with genetic defects that are not carried by a single gene. Instead, an error in a larger part of the chromosome or even in an entire...
WebMD
Web Md: Klinefelter's Syndrome
This site from WebMD Health is a very informative approach to klinefelter's syndrome. It has a fairly in-depth topic overview, then discusses symptoms, exams, treatment, home care and other places to get help.