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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 DNA is what makes up our genes, and is only present in the nucleus. RNA is what is used to copy DNA and transport it to ribosomes to make proteins based on the RNA transcript. It is also used as enzymes in splicing, protein synthesis, and others.All nucleic acids contain 3 key parts a base, a sugar, and phosphate groups. The 5 major bases are adenine, guanine, cytosine, thymine (DNA only), and uracil (RNA only).The difference between single nucleotides of DNA and RNA is the sugar.NA and RNA DNA is what makes up our genes, and is only present in the nucleus. RNA is what is used to copy DNA and transport it to ribosomes to make proteins based on the RNA transcript. It is also used as enzymes in splicing, protein synthesis, and others.