Young readers begin to understand how modern scientists copy and change genes within individual living cells--which make the altered plant or animal more resistant to certain diseases. But this is only one of many avenues of discovery in this exciting field of genetic engineering.

This series was written by Prof. Patrick A. Baeuerle, a renowned scientist in the fields of biochemistry and molecular biology, together with Norbert Landa, an experienced author of nonfiction children?s books.