sample questions exam 2

sample questions exam 2 - Biology 302 Sample questions:...

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Biology 302 Sample questions: Exam 2 True-False ___ DNA replication requires a type of RNA polymerase called DNA primase. ___ Histones contain a large number of acidic amino acids and therefore are negatively charged proteins. ___ 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’ 1
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Briefly describe the role of histone H1 in chromatin structure. Briefly summarize “Chargaff’s Rules” Multiple choice . ___ Origins of DNA replication can be visualized by an experimental technique that
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sample questions exam 2 - Biology 302 Sample questions:...

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