Methylation of cytosine is associated with: (A) Mutation, (B) Increased expression of gene, (C) Decreased expression of gene, (D) No effect
Answer is C. 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 DNA's four bases, cytosine and adenine, can bemethylated Ref satyanarayana 4e