Parishes in Louisiana. Louisiana is divided into 64 parishes, in the same way that 48 of the other states of the U.S. are divided into counties (Alaska is divided into boroughs and census areas). Types of local government. Parishes: Parishes are Louisiana's equivalent to counties in most states.
The types of tests and how they work are reviewed in the following links: 1  The Genetics of Prader-Willi Syndrome: An Explanation for the Rest of Us. 2  Gene Tests-Gene Clinics: Prader-Willi Syndrome has lots of fairly academic information on inheritance, genes, genetic testing, and prenatal testing.
Prader-Willi Syndrome (PWS) is a genetic disorder that occurs in approximately one out of every 15,000 births. PWS affects males and females with equal frequency and affects all races and ethnicities. PWS is recognized as a common genetic cause of childhood obesity.