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Spr06 mid2 - When making both sides of the conversation...

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When making both sides of the conversation, Sometimes I don’t know what to do….Sam Phillips BIOS 100 EXAM 2 March 3, 2006 Gene expression (chapt 18) 1. Were do basal transcription factors mostly act? A. they bind to enhancers regions B. they bind to promoter regions C. they bind to silencer regions D. they bind to exons and introns 2. Where might tissue-specific, regulatory transcription factors act? A. they bind to enhancers regions B. they bind to promoter regions C. they bind to silencer regions D. A and C above 3. Enhancer regions of DNA might be found A. within an intron B. many nucleotides upstream from the gene starting point C. many nucleotides downstream stream from the gene stop code D. all of these ( could be found in any of those places) 4. One of the very first things that have to be done to initiate gene expression is to: A. phosphorylate the histone proteins B. undergo chromatin remodeling to open up the tightly wound DNA C. bind RNA polymerase II to the TATAA box region D. make an RNA copy of the start codon 5. True (A) or False (B) A gene can have at most one enhancer and one silencer region. Chemistry stuff 6. How is it that glucose dissolves in water so easily? 7. Which element(s) has the strongest pull on electrons and will become polar by ‘stealing’ them from other atoms? 8. Does the reaction below represent reduction ( answer A ) or oxidation (answer B ) of Carbon? CO2 + H2 H2CO (formaldehyde) + H2O 9. Does the reaction release energy ( answer A ) or require energy ( answer B)?
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10. At what point in the history of Earth were chemical molecules acquiring energy from the sun and reacting to make more complex, more energized carbon compounds ( period of chemical evolution)?
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