21. The reaction of C 3 O and urea is predicted to form uracil . 22. Uracil also recycles itself to form nucleotides by undergoing a series of phosphoribosyltransferase reactions.23. There are many laboratory syntheses of uracil available. 24. Uracil and thymine are identical except that uracil lacks the 5'methyl group.25. Uracil and thymine are identical except that uracil lacks the 5'methyl group. 26. Cytosine, thymine, and uracil are all pyrimidines ( abbreviated as Y ). 27. Similarly, deamination of cytosine results in uracil . 28. Bisulfite sequencing relies on the conversion of every single unmethylated cytosine residue to uracil . 29. The uracil group of CYN has been identified as a pharmacophore of the toxin. 30. Adenine and guanine are purines, while thymine, cytosine and uracil are pyrimidines.
