Genetic Engineering. What Is This? Do you hear what I hear?
-
Upload
phebe-manning -
Category
Documents
-
view
228 -
download
3
Transcript of Genetic Engineering. What Is This? Do you hear what I hear?
![Page 1: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/1.jpg)
Genetic Engineering
![Page 2: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/2.jpg)
What Is This?
![Page 3: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/3.jpg)
• Do you hear what I hear?
![Page 4: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/4.jpg)
Selective Breeding• Allowing only those animals with
desired characteristics to produce the next generation
• Humans use selective breeding to pass desired traits on to the next generation of organisms
• Inbreeding- develop pure lines
• Hybrid- usually bigger and stronger
![Page 5: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/5.jpg)
Examples of Selective Breeding
![Page 6: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/6.jpg)
Genetic Engineering
• Transgenic organisms contain recombinant DNA (foreign DNA)
• 3 Step Process
–1. Isolate - cleave via restriction enzymes
–2. Attach – “sticky ends”
–3. Transfer – vector, usually bacterial DNA
![Page 7: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/7.jpg)
Tobacco with “Firefly DNA”
![Page 8: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/8.jpg)
Gel Electrophoresis
![Page 9: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/9.jpg)
DNA Sequencing
![Page 10: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/10.jpg)
• ..\..\..\genetransfer30.mov
![Page 11: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/11.jpg)
Applications of DNA Technology or Biotechnology
• Cloning• Recombinant DNA in technology,
medicine, and agriculture• Transgenic organisms• Gene therapy
–Sheep alpha-1 antitrypsin for treatment of emphysema
–Goats CFTR protein for treatment of Cystic Fibrosis
![Page 12: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/12.jpg)
Transgenic Animals• Transgenic livestock have been
produced with extra copies of growth hormone genes
• Such animals grow faster and produce meat that is less fatty than that from ordinary animals
• Efforts are now underway to produce transgenic chickens that will be resistant to the bacterial infections that sometimes cause food poisoning
![Page 13: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/13.jpg)
Transgenic Plants
• (2000) 52 % of the soybeans and 25 % of the corn grown in the United States were transgenic
• Many contain genes that produce a natural insecticide, so the crops do not have to be sprayed with synthetic pesticides
• Others have genes that enable them to resist weed-killing chemicals
![Page 14: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/14.jpg)
Cloned Animals
![Page 15: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/15.jpg)
Gene Therapy
![Page 16: Genetic Engineering. What Is This? Do you hear what I hear?](https://reader036.fdocuments.net/reader036/viewer/2022081512/56649ed15503460f94be08b3/html5/thumbnails/16.jpg)
• ..\Biologix_Manipulating DNA.asx