AP_Bio_-_Chapter_19_Questions

AP_Bio_-_Chapter_19_Questions - 7. Use the known structure...

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Chapter 19 Questions 1. If all cells have the same DNA, then why do cells have different characteristics? 2. What are control elements? 3. How do distal and proximal control elements differ? 4. What kind of molecules are “activators”, and what do they do? 5. Even though eukaryotes do not have operons with one promoter for a series of genes in a row, several related genes scattered throughout the genome may be activated simultaneously. How is this possible? 6. Explain why a Zinc deficient diet can cause stunted growth and an impaired immune system.
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Unformatted text preview: 7. Use the known structure for Leucine to explain how the two polypeptides of a Leucine zipper binding domain of a transcription factor can be held together. (drawing them may help) 8. What are the three major ways that gene regulation can occur at the mRNA transcript level? 9. How do proteosomes and Ubiquitin work together to regulate gene acitivity at the protein level? 10. What are the three ways that a proto-oncogene can be converted into an oncogene? 11. Explain why having an oncogene does not always lead to cancer....
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This note was uploaded on 11/16/2011 for the course BIO 101 taught by Professor Martin during the Fall '08 term at Rutgers.

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