01136cam a2200325 4500 91597840 TxAuBib 20020508120000.0 010611s2002||||||||||||||||||||||||eng|u 2001003481 9781588105578 1588105571 (OCoLC)47168624 DLC DLC DLC TxAuBib Allan, Tony, 1946- Understanding DNA : a breakthrough in science / Tony Allan. Chicago, Ill. : Heinemann Library, 2002. 32 p. : ill. (chiefly col.) ; 27 cm. Point of impact Includes bibliographical references (p. 31) and index. Examines the events and circumstances leading to the discovery of DNA and the impact of this discovery on the scientific and medical communities. 20020508. tITLE. Series. DNA History Juvenile literature. DNA History. Genetics History. Point of impact. TXTLL