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).
Definition of decalcomania. 1  1 : the art or process of transferring pictures and designs from specially prepared paper (as to glass) 2  2 : decal.
Credit Accumulation and Transfer Scheme (CATS) is used by many universities in the United Kingdom to monitor, record and reward passage through a modular degree course and to facilitate movement between courses and institutions.ypically a university course of 150 or 300 notional studies hours (contact time and allocation for self-study) would be worth between 15 and 30 credits, at one of Levels 4 to 7 on the National Qualifications Framework.