Genetic Engineering. How is this possible?. Jelly Fish Gene Mice. Recombinant DNA Technology. Connecting fragments of DNA from different sources. Transgenic Organisms. Plants and animals that contain fragments of DNA from different sources. - PowerPoint PPT Presentation
Text of Genetic Engineering
How is this possible?
Jelly Fish Gene Mice
Recombinant DNA TechnologyConnecting fragments of DNA from different sources
Transgenic OrganismsPlants and animals that contain fragments of DNA from different sources.Example: tobacco plant with firefly gene that makes the plant glow
Bacteria and Recombinant DNA TechnologyScientists commonly use bacteria to produce substances like human insulin or human growth hormoneThey all use bacteria because they reproduce asexually and reproduce rapidly
Creating Bacteria with Human Genes (DNA) Step 1 Cut a piece of DNA that codes for a specific gene using restriction enzymes (act like scissors). They cut DNA at a specific nucleotide sequence. Example:
Step 2Cut plasmid (small circular DNA found in bacteria) with restriction enzymes.
Step 3Gene splicing: Foreign DNA is attached to the plasmid creating recombinant DNA.The recombinant DNA is inserted into the bacteria. The bacteria will reproduce asexually.