Dna can undergo many types of modifications. one of these is methylation. which base(s) is(are) methylated more often in human dna? a-guanineb-cytosinec-thymined-adeni ne

B-cytosine

Explanation:

DNA methylation is the addition of methyl group to the DNA which further  modifying function of genes and the affecting gene expression.

Out of the two of the DNA's four bases, the bases that can be methylated are cytosine and adenine.

In humans, the most widely DNA methylation is covalent addition of methyl group at 5-carbon of cytosine ring which results in 5-methylcytosine.

characterization of nanoparticles is a critical step in nanomaterial production as it provides information of dimension, morphology, surface charge, distribution and degree of surface functionalization.