- cytosine, C - a base found in DNA and RNA and derived from pyrimidine; pairs with guanine
--1 is a kind of pyrimidine
--1 is a substance ofdeoxyribonucleic acid, desoxyribonucleic acid, DNA; ribonucleic acid, RNA
deoxyribonucleic acid, desoxyribonucleic acid, DNA; ribonucleic acid, RNA |