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Nucleic acid derivatives include nucleotides and nucleosides with the nucleotides being the most important class of nucleic acid derivatives. Nucleotides are found primarily as the monomeric units comprising the major nucleic acids of the cell, RNA and DNA. The nucleotides found in cells are derivatives of the heterocyclic highly basic, compounds, purine and pyrimidine. Spectrum has a complete offering of cystosine, uracil, thymine, adenine and guanine nucleotides and their nucleoside derivatives.
DNA, Denatured calf thymus
DNA, Denatured salmon sperm