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Review of Prokaryotic vs. Eukaryotic Gene Expression quiz

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  • What factor is required for transcription initiation in prokaryotes?
    Prokaryotes require sigma factors for transcription initiation.
  • What factor is required for transcription initiation in eukaryotes?
    Eukaryotes require transcription factors for transcription initiation.
  • What is the size and composition of the prokaryotic ribosome?
    The prokaryotic ribosome is 70S, made up of a 30S small subunit and a 50S large subunit.
  • What is the size and composition of the eukaryotic ribosome?
    The eukaryotic ribosome is 80S, consisting of a 40S small subunit and a 60S large subunit.
  • Where does transcription occur in prokaryotes?
    Transcription in prokaryotes occurs in the nucleoid or cytoplasm.
  • Where does transcription occur in eukaryotes?
    Transcription in eukaryotes occurs in the nucleus.
  • Where does translation occur in prokaryotes?
    Translation in prokaryotes occurs in the nucleoid or cytoplasm.
  • Where does translation occur in eukaryotes?
    Translation in eukaryotes occurs in the cytoplasm or on the rough endoplasmic reticulum (rough ER).
  • Do prokaryotes have simultaneous transcription and translation?
    Yes, prokaryotes can perform transcription and translation simultaneously.
  • Do eukaryotes have simultaneous transcription and translation?
    No, eukaryotes do not have simultaneous transcription and translation because these processes occur in different locations.
  • Do prokaryotes process their mRNA after transcription?
    No, prokaryotes do not process their mRNA after transcription.
  • What types of mRNA processing occur in eukaryotes?
    Eukaryotic mRNA processing includes adding a 5' guanine cap, a poly-A tail, and removing introns through splicing.
  • Do prokaryotic genes contain introns?
    No, prokaryotic genes generally do not contain introns.
  • What type of mRNA (monocistronic or polycistronic) do prokaryotes have?
    Prokaryotes can have both monocistronic and polycistronic mRNA.
  • What type of mRNA do eukaryotes typically have?
    Eukaryotes typically have monocistronic mRNA, which contains only a single gene.