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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K8382-1

Cytologist William Wergin (left) and zoologist David Chitwood focus on Caenorhabditis elegans, a free-living nematode species that is serving as a model for studying the biochemistry of soybean cyst and root-knot nematodes.

Photo by Keith Weller.

640 pixels wide: (k8382-1.jpg)

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Last Modified: 5/23/2006