Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 15, Problem 23CTQ
In your own words, describe the difference between rho-dependent and rho-independent termination of transcription in prokaryotes.
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Chapter 15 Solutions
Biology 2e
Ch. 15 - Figure 15.11 A scientist splices a eukaryotic...Ch. 15 - Figure 15.13 Errors in splicing are implicated in...Ch. 15 - Figure 15.16 Many antibiotics inhibit bacterial...Ch. 15 - The AUC and AUA codons in mRNA both specify...Ch. 15 - How many nucleotides are in 12 mRNA codons? 12 24...Ch. 15 - Which event contradicts the central dogma of...Ch. 15 - Which subunit of the E. coli polymerase confers...Ch. 15 - The -10 and -35 regions of prokaryotic promoters...Ch. 15 - Three different bacteria species have the...Ch. 15 - Which feature of promoters can be found in both...
Ch. 15 - What transcripts will be most affected by low...Ch. 15 - How do enhancers and promoters differ? Enhancers...Ch. 15 - Which pre-mRNA processing step is important for...Ch. 15 - What processing step enhances the stability of...Ch. 15 - A scientist identifies a pre-mRNA with the...Ch. 15 - The RNA components of ribosomes are synthesized in...Ch. 15 - In any given species, there are at least how many...Ch. 15 - A scientist introduces a mutation that makes the...Ch. 15 - Imagine if there were 200 commonly occurring amino...Ch. 15 - Discuss how degeneracy of the genetic code makes...Ch. 15 - A scientist sequencing itiRNA identifies the...Ch. 15 - If mRNA is complementary to the DNA template...Ch. 15 - In your own words, describe the difference between...Ch. 15 - A fragment of bacterial DNA reads: 3’...Ch. 15 - A scientist observes that a cell has an RNA...Ch. 15 - Chronic lymphocytic leukemia patients often harbor...Ch. 15 - Transcribe and translate the following DNA...Ch. 15 - Explain how single nucleotide changes can have...Ch. 15 - A normal mRNA that reads 5’ -...
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- What would happen to the regulation of the tryptophan operon in bacterial cells that express a mutant form of the tryptophan repressor that (1) cannot bind to DNA, (2) cannot bind tryptophan, or (3) binds to DNA even in the absence of tryptophan?arrow_forwardMany transcription factors function as dimers. The binding sites of dimeric transcription factors have a common feature that allows the dimer to bind. Write out an imaginary sequence that shows this feature (make it double stranded)."arrow_forwardATM is a kinase that phosphorylates histone H2AX in response to double-stranded DNA breaks. Which of the following scenarios would most quickly regulate ATM activity in the cell? a) Adding silencing methyl groups to cytosines in the Atm gene b) Modifying the histone code for the Atm gene c) Increasing expression of a miRNA specific for the Atm mRNA d) Activating an E3 ubiquitin ligase specific for the ATM proteinarrow_forward
- Give typing answer with explanation and conclusionarrow_forwardIn a written paragraph, describe the difference between prokaryotic and eukaryotic TRANSCRIPTION. In your response, include the following: - differences in what structures (DNA, RNA, proteins etc...) are involved - differences in timing and location - DO NOT include any details on what happens after transcriptionarrow_forwardWhat is the difference between a general transcription factor (like sigma 70) and a regulatory transcription factor (like lac repressor)? Compare and contrast their roles in regulating RNA polymerase and in regulating transcription.arrow_forward
- Describe rho dependent termination in prokaryotesarrow_forwardSelect whether each of the components are associated with eukaryotic or prokaryotic transcription. (When studying for exams, think about what the other component would be!) Prokaryote or Eukaryote?? RNA polymerase + sigma protein: TATA box: General/basal transcription factors: Rho-independent/dependent termination: [arrow_forwardWhat are the role of transcription proteins? Explain briefly at your own wordsarrow_forward
- What effect would inhibitors of histone deacetylases have upon transcription? Group of answer choices They would increase transcription by making the chromatin more compact They would increase transcription by making the chromatin less compact They would decrease transcription by making the chromatin more compact They would decrease transcription by making the chromatin less compact For this question, we will consider a eukaryotic mRNA that has four exons (E1, E2, E3, E4) and three introns (I1, I2, I3). What could occur if a protein were to bind over the 3' splice site of intron 2 (I2)? Group of answer choices The processed mRNA would consist of: E1+E2+E3+E4 The processed mRNA would consist only of: E1+E3 The processed mRNA would consist only of: E3+E4 The processed mRNA would consist of: E1+E2+E4arrow_forwardThis diagram shows a double-stranded section of DNA. The arrow indicates location and strand of the transcription start site. The direction of transcription is also indicated. In which box would you find a 5’TATAA \3’ promoter sequence that would be used for initiating transcription at the start site shown? a) Box A b) Box B c) Box C d) Box Darrow_forwardList the 5 general transcription factors required for initiation of transcription in eukaryotes.arrow_forward
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