Is cytosine the only base that is spontaneously deaminated? What are the consequences of other deaminations to the genetic code? - Cuntorio

What are the consequences of other deaminations to the genetic code? SOLUTION While adenine and guanine also contain amino groups that can be spontaneously hydrolyzed from the nucleobase, the resultant bases are hypoxanthine and xanthine, respectively. Neither of these bases is typically found in the genetic code. Thus a system of molecular machinery has evolved whereby they are identified and