Answer:
Cytosine nucleotides
Explanation:
In most organisms, the methylation of DNA exists in three different sequence motifs. These include: CG (or CpG), CHG or CHH (H represent A, T or C). In plants, cytosine can be methylated at CpG, CpHpG, and CpHpH regions (H represents any of these nucleotide A, T or C except guanine. DNA methylation is almost majorly found in CpG dinucleotides, with the cytosines on both strands usually always being methylated in mammals.
