Virginia Cooperative ExtensionVines, Randy2013-07-302013-07-302001http://hdl.handle.net/10919/23498[4] pagesapplication/pdfen-USVirginia Cooperative Extension materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.LD5655 .A762 no.443BiotechnologyDNAExtension publication