1 / 6

Oswald Avery

Oswald Avery. By: Jacob Horner, Patrick Fedigan , Michael Lin, and Nick Constant. Background Check. Born on October 21, 1877 Was a Canadian-born American physician and medical researcher Studied in the field of molecular biology

kalin
Download Presentation

Oswald Avery

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. Oswald Avery By: Jacob Horner, Patrick Fedigan, Michael Lin, and Nick Constant

  2. Background Check • Born on October 21, 1877 • Was a Canadian-born American physician and medical researcher • Studied in the field of molecular biology • His career was spent at Rockefeller University Hospital in New York City • Died February 20, 1955

  3. Frederick Griffith • Frederick Griffith discovered that bacterium are capable of transferring genetic information by a process known as transformation. • This began Avery’s claim to fame. • This discovery was important for Avery because it helped lead to his main achievement. • It helped Avery because he picked up from Griffith’s first discoveries and added on to what was already known.

  4. Avery’s Main Achievement • Years ago, it was always believed that genetic information was found in cell protein. • Oswald Avery discovered that genetic information is found in the DNA of cells, disproving that protein carried a cells genetic information. • By heat-treating bacteria, Avery injected the bacteria with a substance containing enzymes that destroyed proteins, lipids, carbohydrates, and nucleic acid RNA, but transformation still occurred. • This showed that protein was not responsible for transferring genetic information. • By repeating the experiment one more time, this time they used enzymes to break down DNA. • When DNA was destroyed, transformation did not occur. This proved that DNA was the transforming factor.

  5. Alfred Hershey and Martha Chase • Hershey and Chase continued Avery’s research with the “Hershey-Chase” experiment. • The Hershey-Chase experiment helped confirm that DNA is genetic material • Because of this, people knew that proteins carried the information for inheritance.

  6. Sources • http://media-2.web.britannica.com/eb-media/12/160212-004-5DF19B15.jpg • http://en.wikipedia.org/wiki/Oswald_Avery • Miller and Levine Biology Textbook

More Related