7. to accomplish regulation in prokaryotes, operons (segments of dna) include specialized regions where a variety of regulatory proteins bind and detach to either initiate or inhibit transcription of the genes on that segment. (a) identify two of the proteins involved in the gene regulation in prokaryotes and their function. (b) describe the properties of the repressor that demonstrate it to be a protein. (c) discuss the evidence that proves it to be a repressor within the operon. (d) compare and contrast the roles of a repressor in an inducible system vs. its role in a repressible system.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

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