Base Composition

G+C Content; GC Composition; GC Content; Guanine + Cytosine Content; Base Compositions; Base Ratios; Composition, Base; Composition, G+C; Composition, GC; Compositions, Base; Compositions, G+C; Compositions, GC; Content, G+C; Content, GC; Contents, G+C
The relative amounts of the PURINES and PYRIMIDINES in a nucleic acid.