Rather than uracil, similar nucleotides {thymine} can be in DNA, because cytosine can deaminate to become uracil and so change DNA template too easily. If DNA cytosine deaminates, enzymes remove new uracils and replace with cytosine to repair chain.
Physical Sciences>Chemistry>Biochemistry>Nucleic Acid>Nucleotide>Base
5-Chemistry-Biochemistry-Nucleic Acid-Nucleotide-Base
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Date Modified: 2022.0224