Molecular Biology Help!!!
What is the E site of the ribosome?
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A. entry site |
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B. exit site |
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C. enhancer site |
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D. peptidyltransferase site |
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E. none of the above |
A carrier molecule, lactose ___________ is required for entry of
lactose and other galactosides into the E. coli bacterium.
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A. repressor |
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B. activator |
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C. permease |
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D. reductase |
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E. none of the above |
The segment of mRNA that codes for a polypeptide chain is called
a(n) _______________________.
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A. translation unit |
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B. promoter unit |
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C. operon |
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D. open reading frame |
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E. none of the above |
___________ deacetylation tends to lower transcriptional
activity.
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A. DNA |
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B. RNA |
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C. Histone |
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D. RNA polymerase |
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E. none of the above |
All tRNA molecules have _________at their 3′ end.
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A. 5′-m7 G caps |
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B. poly (A) tails |
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C. CCAOH |
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D. TATA |
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E. none of the above |
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