The regulatory gene that codes for the tryptophan repressor is not tightly linked to the trp...
Question:
The regulatory gene that codes for the tryptophan repressor is not tightly linked to the trp operon. Would it be advantageous if it were? Explain your answer.
Biosynthetic Pathways:
Biosynthetic pathways are sequences of chemical reactions that convert simple precursor molecules into complex products. Each step in a biosynthetic pathway is catalyzed by a unique enzyme.
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View this answerIt would not be advantageous if the trp repressor was tightly linked to the trp operon. This is because the trp repressor needs to be constitutively...
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Operon: Definition & Sequencing
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Chapter 18 / Lesson 17
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Understand what an operon is. Define an operon, understand its function, and explore the sequence of a bacterial operon. Discover some examples of an operon.
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- Answer of the following question. Describe how the trp operon functions in prokaryotic gene transcription.
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- Explain how prokaryotic genes are expressed in an operon model. Include the three major components and their roles.
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- Explain how genes that are not expressed as a single mRNA might be co-regulated.
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- Explain four levels at which eukaryotic gene expression is regulated.
- Regulation of expression by transcription factors and by alternative splicing are two different mechanisms of controlling gene expression in eukaryotes. What is the fundamental difference between the two?
- Explain the two different pre-transcriptional regulations (DNA availability and CPG methylation).
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- In an inducible operon, which of the following must occur to inhibit gene expression? (a) The inducer is absent. (b) The corepressor must bind to the repressor. (c) The inducer must bind to the repressor. (d) The repressor must bind to the operator.
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- Fill in the blank. While the repressor is bound, the ______ cannot bind to the promoter region of the operon.
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