1 / 12

Genetics and Biotechnology

Genetics and Biotechnology. 13.2 DNA Technology. Genetic Engineering -manipulating the DNA of one organism in order to insert DNA from another organism. Genetics and Biotechnology. Applications of recombinant DNA. Bacteria: used to produce hormones and antibiotics

carriemeeks
Download Presentation

Genetics and Biotechnology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Genetics and Biotechnology 13.2 DNA Technology Genetic Engineering-manipulating the DNA of one organism in order to insert DNA from another organism.

  2. Genetics and Biotechnology

  3. Applications of recombinant DNA • Bacteria: used to produce hormones and antibiotics • Plants: made to be resistant to herbicides • Animals: replacement of genes which cause disorders (gene therapy); cows could produce medicine in milk

  4. Genetics and Biotechnology Transgenic Organisms Biotechnology • Organisms, genetically engineered by inserting a gene from another organism, are called transgenic organisms.

  5. Dolly –1st clone

  6. Genetics and Biotechnology Restriction Enzymes • EcoRI-Restriction enzymespecifically cuts DNA containing the sequence GAATTC. • The ends of the DNA fragments, called sticky ends • DNA fragments cut by restriction enzymes can pair up and join with any other DNA fragments cut by the same enzyme

  7. Genetics and Biotechnology Gel Electrophoresis • Anelectric current is used to separate DNA fragments according to the size of the fragments in a process called gel electrophoresis. • When an electric current is applied, the negatively charged DNA fragments move toward the positive end of the gel. • The smaller fragments move farther faster than the larger ones.

  8. Genetics and Biotechnology

  9. A technique aimed at correcting mutated genes that cause human diseases is called gene therapy. Genetics and Biotechnology • Scientists insert a normal gene into a chromosome to replace a dysfunctional gene. • Genomics is the study of an organism’s genome.

  10. Genetics and Biotechnology 13.2 DNA Technology DNA Tools • Genome total DNA in the nucleus of each cell. Transgenic Tobacco Plant with Firefly gene

  11. Genetics and Biotechnology PCR • Polymerase chain reaction (PCR) atechnique for copying a piece of DNA a billion-fold. • The process creates a chain of many nucleotides, and the chain is a strand of DNA. • Used in genetic fingerprinting

  12. Genetics and Biotechnology 13.2 DNA Technology

More Related