a: Methylation ~
b: adding an extra tooth to a zipper
What:
"In chemical terms, it picks up an extra building block that changes its shape. Methylation is like adding an extra tooth to a zipper so it doesn't work properly "
Useful?
Writer: Patrick C. Walsh
LCC:
Where:
Date: Aug 19 2014 4:34 PM
# 6116 Critique Analogy