Capping of mRNA in eukaryotes: 7-Methyl Guanosine cap is added at the 5' end of mRNA by enzyme Guanylyl Transferase. So, this is RNA methylation, not DNA. DNA methylation Epigenetic mechanism Transfer of methyl group to C5 position of cytosine to form 5-methyl cytosine. DNA replication Dnmt (DNA methyl transferases) during DNA replication to copy DNA methylation pattern from parental strand to daughter strand Mismatch repair -Identify parent strand with help of CH3
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