Aminoacyl-tRNA synthetase "charges" a tRNA molecule by catalyzing the attachment of the correct amino acid. (Reprinted with permission from Brooker RJ: Genetics: Analysis & Principles, 3rd ed. New York: McGraw-Hill, 2008.) Source: Information Flow and Levels of Regulation, Medical Genetics: An Integrated Approach Citation: Schaefer G, Thompson, Jr. JN. Medical Genetics: An Integrated Approach; 2017 Available at: https://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/2247/schaefer_ch2_f024-1.png&sec=173743840&BookID=2247&ChapterSecID=173743774&imagename= Accessed: January 02, 2018 Copyright © 2018 McGraw-Hill Education. All rights reserved