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What is the function of the two tryptophan codons in the 14-amino-acid leader peptide in the regulation of trp operon? Your solution’s ready to go! Our expert help has broken down your problem into an easy-to-learn solution you can count on.
Biology questions and answers. The trp operon is: ** (for additional information review the CogBooks Module, answer explained on CogBooks): In the absence of tryptophan, the trp repressor dissociates from the operator, and RNA synthesis proceeds. When tryptophan is present, the trp repressor binds the operator, and RNA synthesis is blocked.
Question: Assess your understanding of the trp operon by completing each sentence repressible The tryptophan (trp) operon is an example of negative regulation of a operon. RNA polymerase The trp operon expressed under normal conditions i.e. the trp constitutively However, if the trp transcription stops. binds itstryptophan, activator repressor ...
Question: In the trp (tryptophan operon), which of the following statements is true? a. tryptophan binds to the promoter b. tryptophan inhibits the repressor, and causes it to release from the operator c. operon expression is induced in the presence of tryptophan d. tryptophan is transcribed from a separate gene, then regulates the operon e. gene products are
Question: The trp operon is transcribed when: (Select all that apply, no partial credit) the trp repressor is inactive.Choice 2 of 5:tryptophan is present at high concentrations inside the cell.Choice 3 of 5:the trp repressor dissociates from DNA.Choice 4 of 5:tryptophan binds to the repressor.Choice 5 of 5:the trp repressor is bound to the operator
Science. Biology. Biology questions and answers. Which of the following aspects of gene regulation is NOT exemplified by the trp operon? regulation of gene expression by concentrations of molecules in the cell coordinate control of multiple genes at once regulation of RNA processing regulation.
Biology questions and answers. Label these regions of the trp operon leader region. A Always forms a step-loop B) Never forms a stem-loop Region 1 Region 2 Region 3 trpE Region 4 Regiona c Forms a stem- loop when Trp- tRNATIp levels are high UUUUUUUU AUG 5' AUG mRNA Trp codons Stop codon tor Coding sequence for leader peptide Forms a stem- loop ...
The trp operon contains five genes trpE, trpD, trpC, trpB, and trpA. These five genes code for components that produce three enzymes that catalyze the biosynthesis of tryptophan. The trpL region is the leader region, which helps regulate transcription once RNA polymerase has initiated transcription.
Question: How would transcription of the E. coli trp operon be affected by the following manipulations of the leader region of the trp mRNA? a. Increasing the distance (number of bases) between the leader peptide gene and sequence 2 b. Increasing the distance between sequences 2 and 3 c. Removing sequence 4 d. Changing the two Trp codons in the ...
The lac operon undergoes transcriptional attenuation and therefore is OFF by default, whereas the trp operon is not regulated by any such mechanism and is ON by default.Figure 16.5 Transcription of the lac operon is carefully regulated so that its expression only occurs when glucose is limited and lactose is present to serve as an alternative ...