Recombinant DNA and biotechnology : a guide for teachers / Helen Kreuzer, Adrianne Massey. Kreuzer, Helen. Massey, Adrianne. Recombinant DNA. Genetic engineering. Biotechnology. QH442 .K728 2001 660.65 21 KRR Includes bibliographical references and index. Washington, D.C. : ASM Press, c2001. c2001. 2001 Text xvi, 648 p., [3] p. of plates : eng