11. In similar manner, deamination of cytosine results in uracil . 12. Uracil -DNA repair is essential to protect against mutations.13. Sodium bisulfite is a chemical compound that converts unmethylated cytosines into uracil . 14. Uracil -tegafur was not tested for lung cancer in the United States.15. Pyrimidine also photolytically decomposes into uracil under ultraviolet light. 16. Uracil is a common and naturally occurring pyrimidine derivative.17. Degradation of uracil produces the substrates aspartate, carbon dioxide, and ammonia. 18. Instead of thymidine, RNA contains uridine ( uracil joined to ribose ). 19. DNA contains thymine ( T ) while RNA contains uracil ( U ). 20. TDG can also remove uracil and 5-bromouracil from mispairings with guanine.
