Multiple Choice
PRACTICE: Which of the following statements concerning transcription in bacteria is FALSE:
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15. Central Dogma & Gene Regulation
Review of Prokaryotic vs. Eukaryotic Gene Expression
Multiple Choice
PRACTICE: Why can prokaryotes perform transcription and translation simultaneously while eukaryotes cannot?
A
Because in prokaryotes, transcription and translation both occur in the cytoplasm.
B
Because in eukaryotes, transcription and translation do not occur in the same location within the cell.
C
Because prokaryotes have polycistronic mRNA while eukaryotes have monocistronic mRNA.
D
Because prokaryotes use sigma factors while eukaryotes use transcription factors.
E
A and B.
F
B and C.
G
C and D.
Verified step by step guidance1
Understand the basic difference between prokaryotic and eukaryotic cells: Prokaryotic cells lack a nucleus and other membrane-bound organelles, while eukaryotic cells have a nucleus where transcription occurs.
Recognize the location of transcription and translation in prokaryotes: Both processes occur in the cytoplasm, allowing them to happen simultaneously.
Identify the location of transcription and translation in eukaryotes: Transcription occurs in the nucleus, and translation occurs in the cytoplasm, preventing simultaneous occurrence.
Consider the type of mRNA: Prokaryotes often have polycistronic mRNA, which can encode multiple proteins, while eukaryotes typically have monocistronic mRNA, encoding a single protein.
Evaluate the role of factors: Prokaryotes use sigma factors for transcription initiation, whereas eukaryotes use a variety of transcription factors, which is not directly related to the simultaneous occurrence of transcription and translation.
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