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Multiple Choice
Which of the following statements about transcription in bacteria and eukaryotes is true?
A
In bacteria, transcription occurs in the nucleus, while in eukaryotes, it occurs in the cytoplasm.
B
In bacteria, transcription and translation can occur simultaneously, while in eukaryotes, they are separated by the nuclear membrane.
C
In eukaryotes, transcription and translation are coupled, whereas in bacteria, they are separate processes.
D
Both bacteria and eukaryotes use the same RNA polymerase for transcription.
Verified step by step guidance
1
Understand the process of transcription: Transcription is the process by which the genetic information in DNA is copied into messenger RNA (mRNA) for protein production.
Identify the location of transcription in bacteria and eukaryotes: In bacteria, transcription occurs in the cytoplasm because they lack a nucleus. In eukaryotes, transcription occurs in the nucleus.
Recognize the coupling of transcription and translation: In bacteria, transcription and translation can occur simultaneously because both processes happen in the cytoplasm. In eukaryotes, transcription occurs in the nucleus, and translation occurs in the cytoplasm, so they are not coupled.
Consider the RNA polymerase used: Bacteria and eukaryotes use different types of RNA polymerase enzymes for transcription. Bacteria typically use a single type of RNA polymerase, while eukaryotes have three different types (RNA polymerase I, II, and III) for different types of RNA.
Evaluate the statements: Based on the above information, the statement 'In bacteria, transcription and translation can occur simultaneously, while in eukaryotes, they are separated by the nuclear membrane' is true.