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Base Analog for Thymine
2-aminopurine Base pairs with guanine
5-bromouracil (keto form) : adenine base pair
5-bromouracil (enol form): guanine base pair
Acridine Dyes
Alkylating Agents
Hydroxylating Agents
NH2OH
hydroxylaminocytosine bps with Adenine
G/C changed to A/T bp
Pyrimidine photoproducts of UV irradiation