| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 3,896,992,384 visitors served. |
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
Tatum, Edward L |
0.01 sec. |
|
|
Tatum, Edward L(awrie)(born Dec. 14, 1909, Boulder, Colo., U.S.—died Nov. 5, 1975, New York, N.Y., U.S.) U.S. biochemist. He worked with George Wells Beadle at Stanford University, where they confirmed that all biochemical processes in organisms are ultimately controlled by genes, that these processes can be broken down into a series of individual sequential chemical reactions, each controlled by a single gene, and that mutation of a single gene changes the cell's ability to carry out only a single chemical reaction. Each gene was found to determine the structure of a specific enzyme (the “one gene, one enzyme” hypothesis). With Joshua Lederberg, Tatum discovered the occurrence of genetic recombination, or “sex,” between certain bacteria. Largely because of their efforts, bacteria became the main source of information about genetic control of biochemical processes in the cell. Tatum, Beadle, and Lederberg shared the Nobel Prize in 1958. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
|
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup |
|---|