In this western blot, the levels of phosphorylated TBK (PTBK) decrease with increasing amounts/expression of the viral protein (VP). Figure description: Increasing amounts of a plasmid expressing the viral protein (0.5, 1, or 2ug) were cotransfected with TBK1 expression plasmid. Cells were harvested 24 h post-transfection and analyzed for phosphorylated TBK1 (anti-PTBK1 Ser172), total TBK1 (anti-TBK1). B-actin (anti-B-actin), and viral protein (anti-VP) expression by Western blot analysis. VP PTBK1 (S172) TBK1 actin Virus proteins O True O False

In this western blot, the levels of phosphorylated TBK (PTBK) decrease with increasing amounts/expression of the viral protein (VP). Figure description: Increasing amounts of a plasmid expressing the viral protein (0.5, 1, or 2ug) were cotransfected with TBK1 expression plasmid. Cells were harvested 24 h post-transfection and analyzed for phosphorylated TBK1 (anti-PTBK1 Ser172), total TBK1 (anti-TBK1). B-actin (anti-B-actin), and viral protein (anti-VP) expression by Western blot analysis. VP PTBK1 (S172) TBK1 actin Virus proteins O True O False

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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In this western blot, the levels of TBK remain constant with increasing amounts/expression of the viral protein (VP). Figure description: Increasing amounts of a plasmid expressing the viral protein (0.5, 1, or 2ug) were cotransfected with TBK1 expression plasmid. Cells were harvested 24 h post-transfection and analyzed for phosphorylated TBK1 (anti-pTBK1 Ser172), total TBK1 (anti-TBK1), B-actin (anti-B-actin), and viral protein (anti-VP) expression by Western blot analysis. VP PTBK1 (S172) TBK1 actin Virus proteins O True O False
In this western blot, the levels of actin increase with increasing amounts/expression of the viral protein (VP). Figure description: Increasing amounts of a plasmid expressing the viral protein (0.5, 1, or 2ug) were cotransfected with TBK1 expression plasmid. Cells were harvested 24 h post-transfection and analyzed for phosphorylated TBK1 (anti-PTBK1 Ser172), total TBK1 (anti-TBK1), B-actin (anti-ß-actin), and viral protein (anti-VP) expression by Western blot analysis. VP PTBK1 (S172) TBK1 actin Virus proteins O True O False
The transfection reagent used to introduce plasmids to the HEK293 cells was a lipid reagent. Why is lipid utilized for this procedure?
Choose two genes from Figure 4.6 and draw a graph to represent the change in transcription over time.
The Pfizer Covid-19 vaccine is one of the vaccines currently being rolled out for mass vaccination in South Africa to protect the population against SARS CoV-2, and the active compound in this vaccine is an mRNA molecule. a) The starting material for productio of this vaccine is a copy of the coronavirus spike protein gene cloned into a ppasmid. List the main experimental steps in the vaccine production process, to go from a plamid to an mRNA molecule. b) Which molecular processes in the cell will allow an injected strand of mRNA to produce anti-Covid immunity in the vaccine recipient?
The linear dsDNA genome of λ binds on the LamB receptor of E. Coli and conducts a normal lysogenic cycle. Exposure to stress will cause the excision of λ prophage from the E. Coli genome. The excised λ genome is then replicated, packaged, and released from the cell as mature λ phage particles and ready to infect other bacterial cells. Among λ phage particles,the transducing phage mediates a specific type of recombination. Understand this scenario and answer the following questions. 1. What are the basic requirements for the insertion of λ into the E. Coli genome? 2. What special features are found in the λ insertion site? 3. What type of recombination occurs with λ insertion in the E. Coli genome? 4. How you will differentiate λ transducing phage from normal λ phage? 5. What exclusive mechanism λ phage utilizes for recombination?
In the genotype presented (genomic plus plasmid genes), which of the following statements Is phenotype? genome: IS P O`z+Y° plasmid: I* Pt otzY+ no production of either B-gal and permease O B-gal and permease induced when lactose is present no B-gal is produced and expression of permease when lactose is present constitutive expression of B-gal and permease constitutive expression of B-gal and no expression of permease
Create a cloning approach that will allow the expression of the SARS-CoV 2 nucleoprotein (NP) in human embryonic kidney (HEK-293) in order to examine protein function using Plasmid cloning Vector. In your strategy address the following; 2.1 Select a method for transfecting HEK-293 cells . Motivate your response and describe the principles of this strategy step by step.
A cloning vector map is shown below. EcoRI Bam Ban Hind P-galactosidase Amp Bam Bam EcoRI Ori C Which restriction site is best for inserting a DNA fragment for selection of chimeric plasmid containing colonies? 1) They're all equally good. 2) Hindll 3) EcoRI 4) BamHI
Three pairs of bacterial cells with the given genotypes undergo conjugation. Place match the genotype of each cell after conjugation to its initial genotype. F+ x F Hfr F- F' F- Answer Bank F F F+ Hfr What is the role of the F-factor in conjugation? It contains genes necessary for replication of the donor's F plasmid. can occur. It allows auxotrophic bacterial cells to survive on minimal medium so that conjugation It contains genes that force recombination between the donor and recipient chromosomes. It contains genes necessary for the formation of the pilus. O It degrades the chromosome of the recipient cell after conjugation.
Shown below are the complementation test results involving 4 independently isolated lethal mutants in a bacteriophage. Complementation was assayed by simultaneouly infecting bacteria with two phage strains, each with a different mutation, neither of which could alone lyse the cells. In the table below, a "+" indicates the strains complemented each other and therefore lysed open the bacteria. A "0" indicates no complementation and therefore no cell lysis occurred. Test pair Results 1___2___3___4 1,2 + 1 0 + + 0 1,3 + 2 0 + + 1,4 0 3 0 + 2,3 + 4 0 2,4 + 3,4 + How many genes are there? a. 3 b.1 c. 2 d. 4
A cell is infected with an HIV mutant that results in very little virus being released into the medium that is used to grow the cultured cells. Upon electron microscopy it is noted that the membrane of the infected cell is idenitcal in appearance to a cell that has not been infected. In addition there is relatively little viral RNA in the cells and relatively few proviruses in the cellular genome when compared to a non-mutant HIV infection. Which of the following proteins is most likely mutated? Multiple Choice gag reverse transcriptase vif vpu