07-ch12-DNA-tech

07-ch12-DNA-tech - Chapter 12 DNA Technology& Genomics...

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Unformatted text preview: Chapter 12 DNA Technology & Genomics Miracles of genetic engineering Bacteria can take up DNA from their environment transformation-- uptake of foreign DNA from environment (can be manipulated in the lab!) genetic engineering-- direct manipulation of genes for practical purposes recombinant DNA technology-- techniques for combining genes from different sources into a single DNA molecule plasmid-- small ring of DNA with accessory genes separate from bacterial chromosome recombinant DNA-- DNA molecule made in vitro with segments from different sources Bacteria are the key to DNA technology biotechnology-- manipulation of living organisms or their components to produce useful products Enzymes are used to cut & paste DNA restriction enzyme-- recognizes and cuts up DNA (protects bacteria from intruder); can be manipulated in the lab restriction fragments resulting DNA sections (with sticky ends ) • both host & donor DNA are cut • DNA ligase used to seal the “pasting” at sticky ends, producing recombinant DNA Live bacteria can clone recombinant DNA...
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07-ch12-DNA-tech - Chapter 12 DNA Technology& Genomics...

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