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.
FMT, also known as bacteriotherapy, is a procedure in which fecal matter from a healthy individual is transferred into the gastrointestinal tract of a person who is ill. Most of the time, this transfer occurs during a colonoscopy procedure, and less typically through the use of enemas.