- Oklahoma State University - Stillwater
- Microbiology 2123
- Ch. 8
Last Modified: 2014-06-23
- Initiation phase
- helps core enzyme detect the promoter
2) Elongation: The RNA chain is extended
3) Termination: RNA pol detaches from the DNA, after the transcript is made
strong pause site at the 3 ́ end of the gene
Antibiotics that inhibit transcription are ___________
- Rifamycin B
- Selectively binds to the bacterial RNA pol & Inhibits transcription initiation
- Actinomycin D
- Nonselectively binds to DNA & Inhibits transcription elongation
The genetic code is _________ which means___________________
binds incoming aminoacyl tRNA
- mRNA - 3-5 minutes
- tRNA - hours
- rRNA - hours
Translation refers to what process?
Transcription refers to what process?
RNA holoenzyme contains?
The sigma factor helps the core enzyme detect the___
Sigma factors recognize ____ at the -10 and -35 positions
Without ___, the core RNA polymerase binds and releases DNA at random.
Which termination requires a pause near the 3’ end of the gene?
Which termination is essential for bacteria?
A codon is:
Role of mRNA is to:
Which type of RNA has a half life of minutes?
Which part of the tRNA H bonds with the mRNA codon that encodes an amino acid?
In prokaryotes, the rRNA subunits are:
In the 70S ribosomes which site binds incoming aminoacyl-tRNA?
In the 70S ribosomes which site binds a tRNA recently stripped of its polypeptide?
Multiple codons can encode same amino acid. This means the genetic code is:
Which of the following antibiotics affect transcription?
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