JMD - Jamaican Dollar. Our currency rankings show that the most popular Jamaica Dollar exchange rate is the USD to JMD rate. The currency code for Dollars is JMD, and the currency symbol is J$. USD - US Dollar. Our currency rankings show that the most popular United States Dollar exchange rate is the USD to EUR rate.
Williams syndrome is the result of a deletion of the 7q11.23 region of chromosome #7 containing the elastin gene and is believed to be a contiguous gene syndrome. Diagnosis of Williams syndrome is confirmed by dual colour FISH using a specific probe and a control probe.
Description. Williams syndrome (WS) is sometimes also referred to as Williams-Beuren syndrome. The disorder was first described by J. C. P. Williams of New Zealand in 1961. WS is a genetic disorder that can be inherited but often arises through spontaneous change in a chromosome (mutation).