|The process which involves the binding of methyl group to the substrate is known as Methylation. This process involves enzymes and occurs in modifications of metals, DNA expression, RNA processing, Protein function and many other biological activities. Scholarly peer review is the process of subjecting an author's scholarly work, research, or ideas to the scrutiny of others who are experts in the same field, before a paper describing this work is published in a journal. The work may be accepted, considered acceptable with revisions, or rejected. Peer review requires a community of experts in a given (narrowly defined) field, who are qualified and able to perform reasonably impartial review.