<prompt> Methylation of cytosine is associated withMutationIncreased expression of geneDecreased expression of geneNo effect  <response>: DNA methylation is essential for normal development and is associated with a number of key processes including genomic imprinting, X-chromosome inactivation, repression of transposable elements, aging, and carcinogenesis. Two of DNAs four bases, cytosine and adenine, can bemethylated Ref satyanarayana 4e 