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Unformatted text preview: 19. Explain why both repressible and inducible operons are examples of negative control of transcription. 18. Compare positive to negative control mechanisms of transcription. 19. What is the effect of abundant glucose on regulation of the lac operon? 20. In the example of the lac operon, how does low glucose effect the CAP protein? 21. Why is CAP considered an example of positive regulation? 22. What are five levels of control in eukaryotic gene expression? 23. What is a constitutive gene? 24. Define three types of regulatory DNA contributing to positive transcriptional control in eukaryotes. 25. What is a transcription factor? 26. Define basal transcription factors, including their function an where they act. 28. What are to types of regulatory DNA used by specific transcription factors? 29. What is an enhancer? 30. What is special about gene regulation by enhancers?...
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This note was uploaded on 12/08/2011 for the course BSCI 105 taught by Professor Jensen during the Summer '07 term at Maryland.
- Summer '07