| http://www.w3.org/ns/prov#value | - Preferred cationic groups include ammonium ions (NH4 +). [0054] ???Zwitterionic group??? refers to a group that possesses both a positive and a negative charge. [0055] ???Genetic material??? refers generally to nucleotides and polynucleotides, including deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
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