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.
These animals are adapted to live in warm temperatures, not cold. Although there is sometimes some overlap, each biome is essentially unique in the organisms found there. Location and Climate of Taiga Biome. Now that we know what a biome is, let's take a closer look at the taiga biome. Taiga is a Russian word meaning 'swampy forest.' The taiga is located only in the Northern hemisphere and covers 27% of the Earth's surface. It stretches across the top of North America and Eurasia, covering most of Canada and Russia.