5-methylcytosine is formed by the action of DNA methyltransferase[?] on CpG sites. It can undergo spontaneous deamination to form thymine.
... j, jh, ~n) Retroflex[?] (roughly the place of articulation of English alveolars like t, but with the tongue curled back) (t, th, d, dh, n) Dental (tongue against teeth, ...