DNA Technology

Today, scientists manipulate DNA for many practical purposes by using techniques collectively called DNA technology. For example, DNA technology can be used as evidence in a criminal case by providing positive identification of DNA left at the scene of a crime. Scientists also use DNA technology to improve food crops, to determine if a person has the genetic information for certain diseases before symptoms appear, and to do research on treatments and cures for genetic diseases. This chapter discusses the tools of DNA technology, how scientists apply these tools to study entire genomes, and how they use them to improve human lives.

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