Because A, G, C, and T appear in the DNA, these molecules are called DNA-bases; A, G, C, and U are called RNA-bases. Uracil and thymine are identical except that uracil lacks the 5' methyl group.Adenine and guanine belong to the double-ringed class of molecules called purines (abbreviated as R).n DNA, the most common modified base is 5-methylcytosine (m 5 C). In RNA, there are many modified bases, including those contained in the nucleosides pseudouridine (Ï), dihydrouridine (D), inosine (I), and 7-methylguanosine (m 7 G).
The United States Air Force Academy (also known as USAFA or Air Force Academy), is a military academy for officer candidates for the United States Air Force.Its campus is located immediately north of Colorado Springs in El Paso County, Colorado, United States.he Academy's stated mission is to educate, train, and inspire men and women to become leaders of character, motivated to lead the United States Air Force in service to our nation.. It is the youngest of the five United States service academies, having graduated its first class in 1959.
The United States Air Force (USAF) is the aerial warfare service branch of the United States Armed Forces and one of the seven American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on 18 September 1947 under the National Security Act of 1947.It is the most recent branch of the U.S. military to be formed, and is the largest and one of the world's most technologically advanced air forces.he Department of the Air Force is one of three military departments within the Department of Defense, and is managed by the civilian Secretary of the Air Force, under the authority, direction, and control of the Secretary of Defense.