1 / 21

13.1 Applied Genetics

13.1 Applied Genetics . p337. Selective breeding. Selecting specific traits Best chickens, juiciest fruit Increasing the frequency of desired alleles in a population is genetic technology. Inbreeding. Mating between closely related species. Used to get desired traits Purebreds

nola
Download Presentation

13.1 Applied Genetics

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. 13.1 Applied Genetics p337

  2. Selective breeding • Selecting specific traits • Best chickens, juiciest fruit • Increasing the frequency of desired alleles in a population is genetic technology

  3. Inbreeding • Mating between closely related species. • Used to get desired traits • Purebreds • Dogs, horses • Can bring out harmful, recessive traits

  4. A good breeder wants to determine the best genes from the parents. How can they know the parents genotypes? • Draw a test cross • See page340

  5. Test cross

  6. 13.2 Recombinant DNA Technology p341

  7. What’s genetic engineering? • Fast, reliable way of increasing frequency of alleles in a population • Involves:cutting DNA from 1 organism & putting it into another

  8. Recombinant DNA- connecting, recombining fragments of DNA from different sources.

  9. An organism that has foreign DNA is called a _____________ ______________ • See & read p 341

  10. DNA going to a transgenic organism is done in 3 steps: • 1. isolate foreign DNA fragment that will be inserted. • 2. attach DNA to a carrier • 3. transfer the fragment into the host organism.

  11. How is this done • 1st- restriction enzymes are used to cut/ cleave DNA • They often cut at areas called palindromes

  12. What’s a pallindrome? p342

  13. Once DNA is cut it must be carried into the new organism • A vector will bring DNA from 1 species to a new species. • Vectors can be biological or mechanical

  14. Bio- plasmids, bacteria- can carry DNA from 1 org to another and reproduce inside it. • (this works very quickly- can get millions of genes cloned) • mechanical- uses a gun/pippette to insert DNA from 1 organism to another.

  15. Once DNA is in the new organism it can make genetically identical copies and make a ____________. • Animals…

  16. Industry • Medicine • Farming

  17. Polymerase Chair Reaction • PCR-replicate DNA outside of living things • Separates strands of DNA by charge and length.

  18. Gel electrophoresis- p346

  19. 13.3 Human Genome p357

  20. Scientists want to map out every gene of a human. • They will use PCR to copy DNA and amplify it quickly.

  21. Clones are possible because DNA can enter a cell & control the cell to become identical to the original cell. • *Dolly- identical the original sheep.

More Related