If one of these cells contributes to the genetic makeup of a child, the child will have an extra X chromosome in each of her cells. In some cases, trisomy X occurs during cell division in early embryonic development. Some females with triple X syndrome have an extra X chromosome in only some of their cells. These cases are called 46,XX/47,XXX mosaics.
For other uses, see Taiga (disambiguation). Taiga (/ËtaÉªÉ¡É/; Russian: ÑÐ°Ð¹Ð³Ð°Ì; IPA: [tÉjËÉ¡a]; from Turkic) also known as boreal forest or snow forest, is a biome characterized by coniferous forests consisting mostly of pines, spruces and larches. The taiga is the world's largest biome apart from the oceans.
LOCATION: Taiga, also known as coniferous or boreal forest, is the largest terrestrial biome on earth.It extends in a broad band across North America, Europe, and Asia to the southern border of the arctic tundra.recipitation is relatively high in the taiga and falls as snow during the winter and rain during the summer. The total yearly precipitation in the taiga biome is 10 - 30 inches (25 - 75 cm). PLANTS: Compared to other biomes, the taiga has less diversity in plant life.