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Which of the following drugs or drug classes inhibits the peptidyltransfer reaction in the bacterial ribosome without itself taking part?

In which group of organisms would you expect to find chemical modifications in most mRNA transcripts?

Which of the following inhibitors of RNA polymerase is selective for bacteria?

In which group of organisms would you find polysomes?

During translation the bacterial ribosome encounters a codon for proline (Pro). Which of the following aminoacyl-tRNAs will it reject?

If production of a protein is needed on short notice in a eukaryote, what course of action does a cell take?

The image below depicts one of the stages in the reactions catalyzed by an aminoacyl-tRNA synthetase. Pick the correct terms to complete the sentences below. In this reaction the nucleophile is [dropdown1]. In this reaction the electrophile is [dropdown2]. In this reaction the leaving group is [dropdown3].

A urine test performed to determine the presence of microorganisms is:

Choose the correct order of events for the production of mature rRNAs in both bacteria and eukaryotes.   Step 1: [step1] Step 2: [step2] Step 3: [step3] Step 4: [step4]  

_____ refers to informal efforts—as opposed to official job assignments—in which employees work to create new products and processes of their own choosing and initiative.