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.
The Taiga is a biome which is also known as a boreal forest. Consisting of mostly coniferous forests. It is the worlds biggest biome. Winter in the Taiga lasts around 5 - 7 mo â¦ nths, with average temperatures below freezing. Temperatures vary throughout the year from â54 Â°C to 30 Â°C (-65 Â°F to 86 Â°F).