Questions from Genetics


Q: In bacteria, what event marks the end of the initiation stage

In bacteria, what event marks the end of the initiation stage of transcription?

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Q: What sequence elements are found within the core promoter of protein-

What sequence elements are found within the core promoter of protein-encoding genes in eukaryotes? Describe their locations and specific functions.

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Q: For each of the following transcription factors, explain how eukaryotic transcriptional

For each of the following transcription factors, explain how eukaryotic transcriptional initiation would be affected if it were missing. A. TFIIB B. TFIID C. TFIIH

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Q: Describe the allosteric and torpedo models for transcriptional termination of RNA polymerase

Describe the allosteric and torpedo models for transcriptional termination of RNA polymerase II. Which model is more similar to ρ-dependent termination in bacteria and which model is more similar to ρ...

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Q: Which eukaryotic transcription factor(s) shown in Figure 12.

Which eukaryotic transcription factor(s) shown in Figure 12.14 play(s) a role that is equivalent to that of σ factor in bacterial cells? From Figure 12.14:

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Q: The initiation phase of eukaryotic transcription via RNA polymerase II is considered

The initiation phase of eukaryotic transcription via RNA polymerase II is considered an assembly and disassembly process. Which types of biochemical interactions—hydrogen bonding, ionic bonding, coval...

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Q: A eukaryotic protein-encoding gene contains two introns and three exons

A eukaryotic protein-encoding gene contains two introns and three exons: exon 1–intron 1–exon 2–intron 2–exon 3. The 5′ splice site at the boundary between exon 2 and intron 2 has been eliminated by a...

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Q: Describe the processing events that occur during the production of tRNA in

Describe the processing events that occur during the production of tRNA in E. coli.

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Q: Describe the structure and function of a spliceosome. Speculate why the

Describe the structure and function of a spliceosome. Speculate why the spliceosome subunits contain snRNA. In other words, what do you think is/are the functional role(s) of snRNA during splicing?

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Q: What are the two different meanings of horizontal lines in a pedigree

What are the two different meanings of horizontal lines in a pedigree?

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