AZT (zidovudine) inhibits the synthesis of the HIV virus RNA because AZT resembles substrate molecules. Which kind of inhibition is most likely taking place in this reaction?

Q: Influenza strains have hemaglutinins and neuraminidases on their cell surface. Briefly describe what…

A: Influenza virus is responsible for causing respiratory disease. Four types of influenza viruses are…

Q: Explain the difference in the mechanism of action of penicillin and sulfanilamide. How is enzyme…

A: Antibiotics are chemical drugs that function to inhibit or kill bacteria causing infections in…

Q: which region (ribose or base) could be modified to create an inhibitor ?

A: Inhibitors are the molecules or substances that result in inhibiting (stopping) the chemical or…

Q: What statement is FALSE regarding the molecule ppGpp? 1.This molecule is a bacterial second…

A: ppGpp is a molecule in which a nucleotide is attached to three additional phosphates as well. ppGpp…

Q: Would you expect actinomycin D to be a competitive inhibitor of RNA polymerase? What about…

A: A drug is a chemical substance that is used to treat any pathogenic, physiological or psychological…

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: What is another name for penicillin binding protein?

A: Penicillin-binding proteins (PBPs) are bacterial proteins, which bind to β-lactam class penicillin…

Q: intercalating agent

A: Intercalation is the process in which there is the insertion of molecules between the planar bases…

Q: What would happen to the regulation of the tryptophan operon in bacterial cells that express a…

A: In E. coli, all the 20 amino acids can be synthesized in vivo by the organism. The genes for the…

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: Explain how the ability of a large, multisubunitprotein molecule to bind a specific DNA sequence can…

A: Protein—A type of organic molecule which is big and has a complex structure. Proteins are polymers;…

Q: What are statins? What is their pharmacological function?

A: Cholesterol plays a role in normal cell and boock bdy function. However, very high levels can lead…

Q: Explain how an E. coli cell that is deficient for proline synthesis (pro-) could become pro+ through…

A: Transduction is the specialized process of introducing a foreign DNA into a host cell, by virtue of…

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: Ritonavir inhibits the action of HIV protease. What kind of inhibition is imposed on HIV protease by…

A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…

Q: The following events are those of RNA-directed RNA synthesis in Escherichia coli. Place the events…

A: RNA-directed RNA synthesis is the process by which RNA molecules are synthesized using RNA as a…

Q: Azidothymidine is a Thymidine analog used to inhibit viral reverse transcriptase. Explain the…

A: AZT is a structural analogue of the deoxy thymidine. it was first synthesized in 1964. it failed as…

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: Explain why mutations of the Arg residue in Gsα that is ADPribosylated by cholera toxin are…

A: A potential virulence factor developed by Vibrio cholerae, which is the causative factor of cholera…

Q: RNAi can be performed in the all of the following organisms except....   E.Coli   fruit flies…

A: According to the question we have to find out that RNAi can be performed in all of the following…

Q: Why is phospholipase c is the target on this western blot explain in detail

A: Phospholipase C (PLC) is an enzyme that cleaves the phospholipids just before the attachment of…

Q: Why is penicillin such an effective inhibitor of the transpeptidase?

A: Transpeptidase is an enzyme that catalyzes a nucleophillic carbonyl substitution reaction necessary…

Q: You are studying a patient with familial hypercholesterolemia. After performing a biopsy to obtain…

A: The LDL (known as bad cholesterol) is composed of lipoprotein, phospholipid cholesterol and some…

Q: Why is the biological activity of the v-Src protein so different from that of c-Src?

A: Src is also called a proto-oncogene. It is a non-receptor tyrosine kinase. It phosphorylates…

Q: Describe the mechanism through which oseltamivir (Tamiflu) inhibits influenza virus reproduction.

A: Oseltamivir (also known as TamifluR) is an antiviral neuraminidase inhibitor used to treat and…

Q: Cytopathic effect on susceptible cells is an important way to detect viral production. Regarding the…

A: Cytopathic effect : It refers to structural changes in host cells that are caused by viral invasion…

Q: Contrast the functions of Spo11 and Cas9, twoenzymes that catalyze the formation of doublestrand…

A: The protein spo11 and cas9 plays a crucial role to initiate the recombination process in yeast and…

Q: One approach to combat drug resistance in bacteria is to combine drugs to treat bacterial…

A: A bacterial infection refers to an invasion and proliferation of harmful bacteria within the body,…

Q: Where is the site of action of inhibitor 2?

A: Inhibitors are the substances that interrupt the interaction of enzyme and substrate complex.

Q: Explain how oseltamivir (Tamiflu) interferes with influenza virus replication.

A: The influenza virus is commonly known as the flu virus. An individual suffering from flu may…

Q: What is the relationship between the rpoS gene and the SOS repair mechanism? Briefly explain.

A: In response to the severe DNA damage; many cells have the mechanism which enable them to synthesize…

Q: Use the blanks on the left hand side to put the following statements in order (use numbers or…

A: Diauxic growth of Bacterium Also known as Bi - phasic growth. It is a phenomenon in which the…

Q: Part A What kind of inhibition is imposed on HIV protease by ritonavir? O irreversible inhibition O…

A: Enzyme inhibition is when an inhibitor binds to the enzyme at the active site or another site, which…

Q: The purified OXA-M290 enzyme can now be tested to determine which β-lactamase inhibitor is most…

A: Beer Lambert's equation relates the concentration of the analyte to the absorbance value recorded by…

Q: why does the activation of M-cdk also result in the activation of Cdc25? What is the mechanism…

A: Cell cycle checkpoints are regulatory systems present in the eukaryotic cell cycle. It guarantees…

Q: Where does the real risk of COVID-19 transmission lie?

A: isolation is the best cure for covid-19. Covid-19 is a contagious virus that spreads very fast.

Q: Define adenosine diphosphate (ADP)

A: Hydrolysis of ATP gives ADP and Pi. ADP can again be converted into ATP. ATP is a high energy…

Q: What is the mechanism that makes Bacteria resistant to Beta-lactams

A: The majority of bacteria are composed structurally of a cell membrane that is encased in a cell…