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.
The milligram (symbol mg) is a unit of mass, equal to 1/000 of a gram, and 1/10000000 of a kilogram (also written 1E-6 kg). Grams. The gram (SI unit symbol: g) is a metric system unit of mass.