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 Answer. As metric units of measurement to quantify weight, 1000 micrograms (mcg) equal 1 milligram (mg). An IU (International Unit) is a unit of measurement for vitamins and other specific biologically active substances. The equivalency of one IU differs from substance to substance and is established by international agreement for each substance.