Page Banner

United States Department of Agriculture

Agricultural Research Service

Image Number D642-1

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

Image Number D642-1

Technician Jacky Carnahan and molecular geneticist Michael Heaton collect a blood sample for DNA analysis.


Photo by Peggy Greb.

640 pixels wide: (d642-1.jpg)

Please visit our Image Gallery
Last Modified: 4/25/2013