In this chapter, you will learn about breeding strategies that are used to make changes in an organism over time. In addition, you will explore the techniques of genetic engineering and the many possibilities and ethical issues it presents for science.

In this chapter, you will: describe breeding strategies that have been used to modify living things explain how mutations in organisms can be useful to humans describe how DNA is isolated, cut, spliced, and handled explain how DNA is used to transform cells and organisms describe some possible applications of analyzing and sequencing human DNA discuss some ethical issues involving new genetic techniques