The statement is False.
It is because the gene expression in prokaryotes is regulated by transcription. When a protein is needed, the level of transcription increases and it is based on the activity of activator and repressor; and not the promoter.
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Wish you all the best! Question 8 2 pts Prokaryotes regulate gene expression with a promoter....
QUESTION 9 Regulation of gene expression by eukaryotes is more complicated that in prokaryotes. The promoter region contains proximal regulatory sequences that are called _regulatory elements. These proximal regulatory elements bind trans-acting proteins that are called __factors.
QUESTION 9 Regulation of gene expression by eukaryotes is more complicated that in prokaryotes. The promoter region contains proximal regulatory sequences that are called _regulatory elements. These proximal regulatory elements bind trans-acting proteins that are called __factors.
The main differences in gene expression between prokaryotes and eukaryotes result from the presence of a nucleus in eukaryotes. Which of the following is FALSE when comparing transcription between prokaryotes and eukaryotes? Prokaryotic mRNA goes through multiple modifications before translation Eukaryotic genes have introns that need to be removed before translation Prokaryotic mRNA can be translated while it is still being transcribed Eukaryotic mRNA needs a 'cap and a 3'tall to prevent its degradation 0/2 pts Question 45 Lets play...
Both prokaryotes and eukaryotes regulate gene expression, turning genes on and off in response to various cues. Which of the following mechanisms is common to both types of cells? Choose all that apply. alternative splicing of mRNA opening or condensing chromatin transcriptional regulation post-translational regulation
What control elements regulate expression of the mPGES-1 gene? The promoter of a gene includes the DNA immediately upstream of the transcription start site, but expression of the gene can also be affected by control elements. These can be thousands of base pairs upstream of the promoter, grouped in an enhancer. Because the distance and spacing of these control elements make them difficult to identify, scientists begin by deleting sections of DNA that contain possible control elements and measuring the...
Questions The citrate (cit) operon 1. Operons are the basic unit of gene expression in prokaryotes. Explain the role of each of these operon components in prokaryotic gene expression: structural genes, promoter, repressor, and operator 2. Fully describe the E. coli cit operon as it functions in conditions without oxygen. Include promoter, repressor and operator in your description. 3. The cit operon is under negative control. What does that mean and how is this operon negatively controlled? 4. What is...
1. trans-acting factors are able to regulate target genes from any chromosome, whereas cis-acting elements can only regulate genes located in the same chromosome. a. True only in operons. In Eukaryotic systems, trans-acting factors only regulate genes in the same chromosome. b. True only in Eukaryotes. Prokaryotes don’t have cis-acting elements. c. True for any organism. d. False. The statement is erroneous 2. Unlike activators, repressors never affect chromatin structure. Repressors inhibit transcription only by binding to the binding sites...
You are conducting an experiment identifying enhancers that
regulate the expression of a gene that codifies for a protein that
participates in cell division. The gene is called Mitosis
Regulatory Protein A or MRPA. The complete DNA sequences
for the MRPA promoter and coding region have been
identified. However, it is unknown if MRPA has enhancers
regulating its transcription. To answer this question your lab
first produced a transgenic cell line where GFP has been inserted
as a reporter gene....
Incorrect Question 5 0/2 pts What effect would the deamination of 5-methylcytosine in a promoter have on the expression of that gene? The gene will have decreased expression because this chemical reaction will result in unmethylated cytosine. The gene will have increased expression because this chemical reaction will result in uracil. The gene will have decreased expression because this reaction will result in uracil. The gene will have increased expression because this chemical reaction will result in unmethylated cytosine. The...
Question 2 You construct a reporter gene for the NF-kB pathway consisting of a promoter to which NF-kB can bind, upstream of a series of MS2 repeats and a lacZ gene sequence. You integrate this reporter at a single locus in the genome of a mammalian cell line, and co-express MCB-GFP in these cells. You then treat these cells with either a control solution or TNF-a ligand, and record the following fluorescence intensities in nuclear spots. In both cases, 100%...