More than one mutation of the MTHFR gene. Genes are passed down by your mother and your father. Most literature states there are a good 40-50 different mutations of this important gene which could be passed down by one, or both or your parents. Heterozygous: means you have one copy of either the 677 mutation, or the 1298 mutation, plus a normal one from the other parent. 2  Compound Heterozygous: means you have one copy of the 677 mutation from one parent and one copy of the 1298 mutation from the other parent.
Las Vegas is the largest city in the Nevada state, population of 603,488 estimates in 2013 census and covered area of 344 km 2 at the density of 1,694 inhabitants per km 2, located in the Clark County. Winchester city is with highest density of 2,489 inhabitants per km 2.
The city has served as the capital of Nevada since statehood in 1864 and for much of its history was a hub for the Virginia and Truckee Railroad, although the tracks were removed in the 1950s. Prior to 1969, Carson City was also the county seat of Ormsby County. In 1969, the county was abolished, and its territory was merged with Carson City to form the Consolidated Municipality of Carson City. With the consolidation, the city limits today extend west across the Sierra Nevada to the California state line in the middle of Lake Tahoe.