4. Shown here is a regulation of a gene a) Is this a prokaryotic or eukaryotic gene? Explain in short b) Which of proteins A, B, or C is likely to have a DNA binding domain? c) Which of proteins A, B, or C is likely to have a transactivation domain?

4. Shown here is a regulation of a gene a) Is this a prokaryotic or eukaryotic gene? Explain in short b) Which of proteins A, B, or C is likely to have a DNA binding domain? c) Which of proteins A, B, or C is likely to have a transactivation domain?

Name: 4. Shown here is a regulation of a genea) Is this a prokaryotic or eu
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Description: 4. Shown here is a regulation of a genea) Is this a prokaryotic or eukaryotic gene?Explain in shortb)Which of proteins A, B, or C is likely tohave a DNA binding domain?c) Which of proteins A, B, or C is likely tohave a transactivation domain?d)What

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter19: Genomes And Proteomes

Section: Chapter Questions

Problem 8TYK

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Similar questions

1. Why aren't ssb proteins necessary in transcription?
Discuss Concepts In a mutant strain of E. coli, the CAP protein is unable to combine with its target region of the lac operon. How would you expect the mutation to affect transcription when cells of this strain are subjected to the following conditions? Lactose and glucose are both available. Lactose is available but glucose is not. Both lactose and glucose are unavailable.
Which subunit of the E. coli polymerase confers specificity to transcription? a. b. c. d.
1)A. how do you read a sequence of DNA (template or non-template strand) to convert it an mRNA sequence and to a protein? B.How does chromatin remodeling regulate gene transcription? C. What are the major differences between gene expression in bacteria and eukaryotes D. How are non-coding regions involved in gene transcription? E. Explain how eukaryotic genes sometimes produce multiple protein products?
1. a) If glucose is not available and lactose is absent from the environment, what is the status of transcription of the lac operon genes? Explain your answer from both an evolutionary perspective and in terms of negative and positive regulation of the operon? b)If glucose is not available, but lactose is available from the environment, what is the status of transcription of the lac operon genes? Explain your answer from both an evolutionary perspective and in terms of negative and positive regulation of the operon? b)
1. a)how is it possible for such drugs to selectively kill bacterial cells and not our own cells? b)Provide an example of post-translational regulation of protein activity and explain the advantage of regulating each protein/process at the post-translational level instead of the transcriptional level.
1. Gene expression may be regulated after translation using the following mechanisms EXCEPT a. by protein phosphorylation. b. by differential splicing. c. by microRNA binding. d. by ubiquitination. 2. If nutritional requirements are not met, gene expression will most likely be regulated a. before transcription factors enter the nucleus. b. before ubiquitin promotes proteolytic degradation. c. before translation initiation factors perform their tasks. d. before transcription factors have undergone multimerization.
1.Describe the process of transcription in prokaryotes, then explain how proteins can be targeted for specific sites within the cell. b)What is the role of the enzymes and proteins involved in DNAreplication?
1. Transcription: a)State the role of RNA polymerase in gene transcription.b. Explain why the DNA is not used directly for protein translation (i.e., why is mRNA used instead?).c. Explain what occurs when a gene’s promoter region is open for RNA polymerase binding.d. Explain what occurs when a gene’s promoter regions is blocked from binding RNA polymerase.e. Explain how two cells, such as liver cells and skin cells, can become specialized in structure and function despite containing the same genome.
8 There is a promoter of a tumour suppressor gene in a mutant cancer cell line, and discover that instead of a nucleosome free region 5’ of the transcription start site there are nucleosomes bound. What would be the likely consequence on transcription of this gene? I am not sure about what is the outcome, normally it binds to the nucleosome free region 5' of the transcription start site to initiate transcription. Now, it binds with nucleosomes. What will happened? Is the DNA cannot transcripted successfully? Due to the transcription needs a naked DNA to process while in nucleosomes, DNA has been wrapped up. Thank you.
1. If the above gene is one of the three structural genes of the lac operon that codes for theprotein/ enzyme responsible for breaking lactose into two molecules of simple sugars,a.) what triggers the activation of this gene?b.) what triggers the inactivation of this gene?c.) what substance is attached to the operator region of the operon in the absence ofactivator?d.) what gene is responsible for the synthesis of the substance used to attach in theoperator region in the absence of activator? e.) what substance is attached to the promoter region of the operon in this case?
1. why does the genome contain so many more genes for rRNA than mRNA? 2. why is it effective for a bacterial cell to organize genes for related functions as an operon? How do eukaryotes achieve the same benefits?