DrVirgo
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Tetracycline inhibits which of the following steps in protein synthesis?
A. Animnacyl-rRNA binding to the ribosome
B. Peptidyl transfer of site-bound amino-terminal tRNA
C. Polypettide chain termination
D. Ribosomal translocation
E. RNA polymerase II activity
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| mjl1717
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answer-a
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| jcramer
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i think A should be "tRNA" - binds 30s and prevents tRNA from binding to the ribosome
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| drpkaur
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A-Its aminoacyl t-RNA inhibition binding to ribosome
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| DrVirgo
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Sorry typo! 
You all are right... A should say "t-RNA" and NOT "rRNA"...
A is the right answer.
Tetracyclines block the attachment of aninoacyl t-RNA to acceptor site. (bacteriostatic).
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| DrVirgo
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Sorry typo!
You all are right... A should say "t-RNA" and NOT "rRNA"...
A is the right answer.
Tetracyclines block the attachment of aninoacyl t-RNA to acceptor site. (bacteriostatic).
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| Diego Casali
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A
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