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sample questions answers - Biology 302 Sample questions:...

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Biology 302 Sample questions: Exam 2 True-False _T__ DNA replication requires a type of RNA polymerase called DNA primase. __F_ Histones contain a large number of acidic amino acids and therefore are negatively charged proteins. _T__ Purines are nine-membered nitrogen containing ring compounds found in both RNA and DNA. The DNA sequence shown below contains the transcription start site of a bacterial gene (E. coli) . a. On the DNA sequence, draw an arrow to indicate the approximate position where transcription is predicted to begin (the transcription start site). b. Label the strand that will be the template strand. 5’-TAGATCGGTACCG TTGACA ATCGACACTCGGGCTAGCC TATATT GTACGTAGGTCCACGG- 3’ 3’-TTCTAGCCATGGC AACTGT TAGCTGTGAGCCCGATCGG ATATAA CATGCATCCAGGTGCC-5’ template the TATATT centers at –10; 10 nucleotides upstream of the start site 1
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Briefly describe the role of histone H1 in chromatin structure. Helps form the 30nM fiber
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This note was uploaded on 12/13/2011 for the course BIOL 302 taught by Professor Connollyandkrizek during the Fall '08 term at South Carolina.

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sample questions answers - Biology 302 Sample questions:...

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