Bacterial Ribosomes and Translation Complexes
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Questions and Answers

How many ribosomes are estimated to be present in each bacterial cell?

  • 10,000
  • 40,000
  • 30,000
  • 20,000 (correct)

    • What type of mRNA directs the synthesis of a single kind of polypeptide?

  • Polycistronic mRNA
  • Capped mRNA
  • Operonic mRNA
  • Monocistronic mRNA (correct)

    • What is the process by which ribosomes begin translating mRNAs that have not yet been completed in bacteria?

  • Transcription
  • Capping
  • Translation
  • Coupling of transcription and translation (correct)

    • Which of the following is NOT a level of protein structure?

    <p>Quinary</p> Signup and view all the answers

    What is added at the 3' end of mRNA in eukaryotes?

    <p>Poly-A tail</p> Signup and view all the answers

    Which of the following is the process by which a bond is formed between the carboxyl group of one amino acid and the amino group of another?

    <p>Dehydration (condensation) reaction</p> Signup and view all the answers

    What is the name of the structure formed when multiple ribosomes are actively translating the same mRNA?

    <p>Polyribosome</p> Signup and view all the answers

    What type of RNA is produced by groups of bacterial and archaeal genes called operons?

    <p>Polycistronic mRNA</p> Signup and view all the answers

    What is added at the 5' end of mRNA in eukaryotes during maturation?

    <p>7-methylguanosine residue</p> Signup and view all the answers

    What is the process by which ribosomes are not free-floating in eukaryotes?

    <p>Association with endoplasmic reticulum</p> Signup and view all the answers

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