Association of nucleotides with homoionic clays.
D005075:Biological Evolution; D055598:Chemical Phenomena; D002621:Chemistry; D003854:Deoxyribonucleotides; D012265:Ribonucleotides; D012987:Soil
D003854:Deoxyribonucleotides; D012265:Ribonucleotides; D012987:Soil