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.
Quick Answer. A milligram, abbreviated as mg, is a metric unit of measure that is equal to 1/1000th (one one thousandth) of a gram, while a microgram, abbreviated mcg, is a metric unit of measure that is equal to 1/1000000th (one one millionth) of a gram. One microgram is equal to 0.0010000 milligrams.