A protein called trypsin, which plays a role in digestion, is made bypancreatic cells and secreted from those cells. Starting with a sampleof pancreatic cells, a researcher modified the gene that encodes trypsin by mutating the ER signal sequence so it was no longer recognized by SRP. How would this mutation affect the targeting of trypsin?

Q: When tryptophan levels are high in E. coli, what conformation does the trp leader mRNA adoptand what…

A: The question is asking about the effect of high tryptophan levels on the conformation of the trp…

Q: E) The regulatory protein that controls expression of the hexose operons is a transcriptional…

A: The regulatory protein that controls expression of the hexose operons is a transcriptional…

Q: Remember that hexose kinase is an enzyme required for hexose metabolism, a process that takes a…

A: Cellular respiration is a catabolic pathway of the process of metabolism, where a series of chemical…

Q: Which option is true when considering the regulation of cAMP and the Lac operon. If bacteria are in…

A: Introduction: An operon is a coordinated unit of genetic expression in a bacteria. Jacob and Monod…

Q: Quorum sensing controls the expression of virulencein many pathogenic bacteria. Usually, pathogens…

A: Quorum sensing is a type of signaling that works between bacteria present in a region. Bacteria…

Q: he lac operon contains the genes that the bacterium needs to be able to use lactose as a carbon…

A: An Operon is a unit of structure and function that consists of the clusters of regulatory genes…

Q: What would likely result from a mutation in the lac operon promoter that increases the number of RNA…

A: RNA polymerase is the enzyme that polymerises messenger RNA (mRNA) over the DNA molecule. This…

Q: The attenuation mechanism that helps block expression of the tryptophan operon requires all of the…

A: In transcriptional attenuation, the expression of genes are negatively regulated by controlling the…

Q: A mutation in the repressor LacI causes it to lose the ability to bind its effector, allolactose.…

A: The question is asking about the effect of a mutation in the LacI repressor that causes it to lose…

Q: The lactose operon is likely to be transcribed when _____. A) there is more glucose in the cell than…

A: The initiation of transcription determines the regulation of prokaryotic genes. The regulation of…

Q: Match each of the following mechanisms with how it can change the levels of gene products--whether…

A: Operons are DNA segments that include groups of associated genes. They consist of a promoter region,…

Q: What are the effects of the following conditions on Lac operon of bacteria? Do not forget to mention…

A: Lac Operon helps in the metabolism of lactose in bacteria.

Q: Laz Z Lac Z Lạc Y Lac Y Genotype -lactose +lactose -lactose +lactose a. I+P+O+Z-Y+/F I+P+O^S Z+ Y-…

A: A set of genes present in E.coli. that regulates the uptake of lactose from the surrounding…

Q: One way that regulation is often studied is by examining the effects of mute ons. For example,…

A: There are two types of lac mutations occurring in lac operon: 1. uninducible - operon can't be…

Q: The lac operon in E. coli bacteria codes for proteins that break down (digest) the disaccharide…

A: The lac operon is expressed at its highest levels when there is lactose but no glucose (Option C is…

Q: nber that hexose kinase is an enzyme required for hexose metabolism, a process that takes a on sugar…

A: Operon is a regulatory unit in certain bacteria that helps in the regulation of the gene expression…

Q: Draw a schematic diagram showing the components involved in the regulation of the tryptophan operon.

A: The trp operon is regulated by the trp repressor. When bound to tryptophan, the trp repressor blocks…

Q: What is the effect of a mutation in the allosteric site of the Lac Repressor protein?

A: Lac operon (often called lactose operon) is an important operon sequence required for the metabolism…

Q: P*O*Z*Y# Example lac+ I*p*o+z*Y* FP*0*Z*Y* IP*o*z*Y* -P#O*Z¥Y* I*p*oCz*Y C I*p*o+z*Y

A: The lac operon is a catabolic operon and is expressed in the presence of the inducer lactose.

Q: Tryptophan (Trp) attenuation is an extra mechanism of regulation of trp operon when trp level is too…

A: The trp Operon, is nothing but a sequence of DNA that is responsible for the regulation of formation…

Q: You are growing E. coli in a laboratory in order to study their operons. The growth media you are…

A: In this study, E. coli is cultured in a laboratory with particular growth media conditions to…

Q: 7. If a researcher moves the promoter for the lac operon to the region between the beta…

A: Lac operon is a bacterial gene and it works through a repression mechanism. lac I produces repressor…

Q: Propose some possible reasons why mutations in the RPSA gene affect only the spleen and not other…

A: Spleen is a small part present in the gastro intestinal tract of an individual. Spleen has some…

Q: In the trp operon, if a mutation occurred in the gene for the repressor so that it could bind to the…

A: Bacteria like Escherichia coli (a friendly gut bacterium) require amino acids to survive since they,…

Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.