Karyotyping can be used to diagnose which of the following disease?: (A) Klinefelter’s syndrome, (B) Multiple myeloma, (C) Niemann-Pick disease, (D) Pemphigus
Answer is A. The only disease listed that is related to an abnormal number of chromosomes is Klinefelter’s syndrome. This disease is characterized by two or more X chromosomes and one or more Y chromosome. Typically, those affected have 47 chromosomes with a karyotype of XXY.