1 / 12

Genetic Engineering

Genetic Engineering. Unit 2-4 Notes Mr. Hefti – Pulaski Biology. Selective Breeding. Produces domestic animals and new varieties of plants with desirable traits Healthier meat from animals bred to contain less fat Fruits and vegetables Larger Sweeter Hardier Juicier.

emory
Télécharger la présentation

Genetic Engineering

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. Genetic Engineering Unit 2-4 Notes Mr. Hefti – Pulaski Biology

  2. Selective Breeding • Produces domestic animals and new varieties of plants with desirable traits • Healthier meatfrom animals bred to contain less fat • Fruits and vegetables • Larger • Sweeter • Hardier • Juicier

  3. Selective Breeding • Cross bean plant producing many podswith bean plant resisting fungal infections • Result? Seeds that grow into bean plants with many pods and fungus resistance

  4. Selective Breeding • Classic example is in dog breeding • Genes from different breeds crossed to produce new breeds with desirable traits • Olfaction – blood hound • Speed – grayhound • Long body – dachshund • Strength – bulldog • Herding – sheepdog

  5. Pros & Cons Selective breeding + Inexpensive + Low tech - Not always guaranteed to get desired traits Genetic engineering + Guaranteed to get desired traits - Expensive + / -High tech - Controversial

  6. Diabetes

  7. Q: How is human insulin made for diabetics? A: Genetic engineering (altering an organism’s DNA to serve a purpose)

  8. Step 1 – Isolate bacterial DNA (plasmid) Step 2 – Cut open plasmid w/ restriction enzymes

  9. Step 3 – Isolate human DNA of interest Step 4 – Place human and bacteria DNA fragments together

  10. Step 5 – Join fragments together using other enzymes Step 6 – Insert into bacteria and let them make copies asexually and carry out instructions of genetic code.

More Related