The changes that cause Prader-Willi syndrome occur on the pair known as chromosome 15. The 23rd chromosome pair is designated as the sex chromosome pair This pair determines the babyâs sex: XX for a girl, XY for a boy.
(In the metric system, a milligram is a unit of weight equal to one-thousandth of a gram, and a deciliter is a unit of volume equal to one-tenth of a liter.) Muscular young or middle-aged adults may have more creatinine in their blood than the norm for the general population.
1 milligram/liter [mg/L] = 1.000000002 part/million [ppm]. A milligram per liter (g/L) is a unit of measurement of mass concentration that shows how many milligrams of a certain substance are present in one litre of a liquid or gaseous mixture.