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Questions and Answers
What is the function of the DNA segment known as an exon?
What is the function of the DNA segment known as an exon?
- It is a type of promoter sequence that binds to RNA polymerase.
- It codes for protein and remains in the mRNA after processing. (correct)
- It does not code for protein and is removed during processing.
- It remains in the primary transcript but is removed during processing.
What is the term for the DNA sequence that could potentially be translated into a protein?
What is the term for the DNA sequence that could potentially be translated into a protein?
- Operon
- Promoter sequence
- Open Reading Frame (ORF) (correct)
- Intergenic DNA
What is the term for the mRNA that carries the information for multiple proteins?
What is the term for the mRNA that carries the information for multiple proteins?
- Monocistronic mRNA
- mRNA
- Polycistronic mRNA (correct)
- tRNA
What is the co-factor required by DNA-dependent RNA polymerase?
What is the co-factor required by DNA-dependent RNA polymerase?
What is the term for the DNA sequence that does not code for proteins or functional RNA molecules?
What is the term for the DNA sequence that does not code for proteins or functional RNA molecules?
What is the location of the RNA polymerase?
What is the location of the RNA polymerase?
What is the approximate molecular weight of the RNA polymerase holoenzyme?
What is the approximate molecular weight of the RNA polymerase holoenzyme?
What is the consensus sequence for the -10 element in prokaryotic promoters?
What is the consensus sequence for the -10 element in prokaryotic promoters?
What is the role of the σ factor in the formation of the RNA polymerase holoenzyme?
What is the role of the σ factor in the formation of the RNA polymerase holoenzyme?
What is the approximate length of the transcription bubble formed during the initiation of transcription?
What is the approximate length of the transcription bubble formed during the initiation of transcription?
Which model of transcription initiation is currently believed to reflect what actually happens?
Which model of transcription initiation is currently believed to reflect what actually happens?
How much DNA does the RNA polymerase holoenzyme cover during the formation of the closed binary complex?
How much DNA does the RNA polymerase holoenzyme cover during the formation of the closed binary complex?
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