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.
A milligram (mg) is a decimal fraction of the base unit of mass in the International System of Units (SI) kilogram, which is defined as being equal to the mass of the International Prototype Kilogram, which is almost exactly equal to the mass of one liter of water. 1 mg = 10â»Â³ g = 10â»â¶ kg. milligram (mg) is a decimal fraction of the base unit of mass in the International System of Units (SI) kilogram, which is defined as being equal to the mass of the International Prototype Kilogram, which is almost exactly equal to the mass of one liter of water. 1 mg = 10â»Â³ g = 10â»â¶ kg.