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well i am not sure what are you asking but if you think the units that form DNA and RNA then the answer would be NUCLEOTIDES ...there are 4 types of nucleotide ... ADENINE THYMINE GUANINE CYTOSINE in case of DNA and in case of RNA THYMINE is substituted with URACIL. Arizona D Â· 7 years ago.
DNA and RNA are nucleic acids . Nucleic acids are polymers of nucleotides (also called mononucleotides).. The nucleotides in DNA are deoxyribonucleotides . The nucleotideâ¦s in RNA are ribonucleotides .. Each nucleotide consists of a pentose (5-carbon) sugar, a nitrogen-containing base and a phosphate group..