Erythromyocin is an antibiotic that prevents the tRNA molecule from moving from the A site to the P site on the ribosome during translation in bacterial ribosomes. Predict the effects of this drug on protein synthesis. A. DNA replication is accelerated B. the process of termination is activated; C. the process of termination is stabilized. D. the process of elongation is activated; E. the process of elongation is inhibited;
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The antibiotic erythromycin prevents protein synthesis in bacterial cells. Based on this information, which of the following is the most likely target of the drug? $1.80 \mathrm{S}$ ribosomes $2.70 \mathrm{S}$ ribosomes $3.60 \mathrm{S}$ ribosomal subunit 4. $50 \mathrm{S}$ ribosomal subunit $5.40 \mathrm{S}$ ribosomal subunit a) 1,3 b) 1,4 c) 2,3 d) 2,4 e) 2,5
Proteins control a wide variety of cellular processes. Many antibiotic drugs work by interfering with protein synthesis in bacteria that cause infection. Explain how each of the following antibiotic mechanisms disrupts gene expression in bacteria. a. tRNAs misread mRNA codons, binding with the incorrect codon. b. Methionine is released from the initiation complex before translation can begin. c. tRNA cannot bind to the ribosome. d. A tRNA picks up the wrong amino acid.
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