Mount Elbrus 100 people to be attempting the summit via this route each day. Winter ascents are rare, and are usually undertaken only by very experienced climbers. Elbrus is notorious for its brutal winter weather, and summit attempts are few and far between. The climb is not technically difficult, but it is physically arduous because of the elevations and the frequent strong winds. The average annual death toll on Elbrus is 15–30, primarily due to "many unorganized and poorly equipped" attempts to summit the mountain. Since 1986, Elbrus has been incorporated into Prielbrusye National Park, one of the Protected areas of Russia.
MT-TF MT-TF Mitochondrially encoded tRNA phenylalanine also known as MT-TF is a transfer RNA which in humans is encoded by the mitochondrial "MT-TF" gene. The "MT-TF" gene is located on the p arm of the mitochondrial DNA at position 12 and it spans 71 base pairs. The structure of a tRNA molecule is a distinctive folded structure which contains three hairpin loops and resembles a three-leafed clover. MT-TF is a small transfer RNA (human mitochondrial map position 577-647) that transfers the amino acid phenylalanine to a growing polypeptide chain at the ribosome site of protein synthesis during translation. Mutations in "MT-TF"