Page Banner

United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

Download a high-resolution (300dpi) digital image here

Image Number D663-1

Microbiologist Michael Heaton (left), research leader William Laegreid (center), and molecular biologist Michael Clawson view DNA sequence variation within the cattle prion gene.

Photo by Stephen Ausmus.



640 pixels wide: (d663-1.jpg)




Please visit our Image Gallery
Last Modified: 12/21/2006