The steps get me to a place like this: /My Profile/Account Information/. Authorized Users - Retail Store. Please enter the first and last name of the user you want to authorize to make changes on this account in an AT&T retail store. Select 'Save Changes' to add this authorized user. But I did not find any place to enter the name which I want to add as an authorized user.
The nucleotides used to build DNA are Adenine, Cytosine, Guanine, and Thymine. For RNA, there is no Thymine; it is replaced with another nucleotide called Uracil. These are actually the names of the nitrogenous bases that nucleotides contain.A nucleotide is made up of a Deoxyribose Sugar, a Phosphate Molecule, and a Nitrogenous Base. We refer to them though by the name of their nitrogenous base.hese are actually the names of the nitrogenous bases that nucleotides contain. A nucleotide is made up of a Deoxyribose Sugar, a Phosphate Molecule, and a Nitrogenous Base. We refer to them though by the name of their nitrogenous base.
X-ray crystallography provided the final clue that the DNA molecule is a double helix, shaped like a twisted ladder. In 1953, the race to determine how these pieces fit together in a three-dimensional structure was won by James Watson and Francis Crick at the Cavendish Laboratory in Cambridge, England.arlier work had shown that DNA is composed of building blocks called nucleotides consisting of a deoxyribose sugar, a phosphate group, and one of four nitrogen bases â adenine (A), thymine (T), guanine (G), and cytosine (C). Phosphates and sugars of adjacent nucleotides link to form a long polymer.