Chapter 9

Chapter 9 - Gene Expression and Regulation

Beadle and Tatum - The experiments on Neurospora mutants produced the "one gene/one enzyme" hypothesis and won Beadle and Tatum a Nobel Prize in 1958.

Genes - Learn more about genes and their function at this site, a Web page from the "What the Heck Is. . .?" series

Genes to Proteins - At this extensive site, you will get a complete overview of the processes that convert information from DNA into a protein. What makes this site refreshing is that it uses hand-drawn cartoons rather than computer models to illustrate the processes.

History of Genetics - A good review of the history of genetics is available here.

Protein Synthesis - This comprehensive site covers all the basics, from DNA to RNA to protein.

Gene Expression: Transcription - This site contains some very detailed information about RNA and the steps of gene transcription.

RNA Transcription and Processing - This site thoroughly covers Transcription.

Gene Translation: RNA --> Protein - This site on translation contains detailed information and useful charts and diagrams.

Mutations - This site reviews the general types of mutations that occur in cells and their potential outcomes.

Homeobox Genes - Why do the cells in your arms grow fingers instead of toes? Differences in gene expression are the real reason. Find out how mutations that change one body part of a fly (or a mouse) to another are giving us hints about the process. This site is actually for teachers but has plenty of great information for all of us!

Sex Determination - This site describes the genetics of sex determination in humans (and, briefly, some other organisms). If you scroll down the page, there is a picture of cells stained to show the Barr body.

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This page was last updated on: February 12, 2006