It has been postulated that thiogalactoside transacetylase (LacA in the lactose operon) plays a role in detoxification by acetylating potentially hazardous -galactosides to prevent their absorption after they have diffused out of the cell. How would you put this idea to the test?

Q: please answer Why is it useful to have two different mechanisms of positive regulation? I.e. why…

A: The L-arabinose operon, also called the ara or araBAD operon, is an operon required for the…

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: describe the actions of the normal and mutated lac operon in absence of lactose.use picture if…

A: Lac operon is the consists of lac genes that code the enzymes and these enzymes are used to uptake…

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: Please help me iwht this question explain how the regulation of the Lac Operon incorporate both…

A: An operon includes a group of genes that are expressed under the same promoter.

Q: Explain why large amounts of transcript result when a bacterium with a lac Operon is in a medium…

A: Transcription is the process by which RNA is synthesized from DNA. The messenger RNA or mRNA…

Q: a mutation that leads to a nonfunctional adenylate cyclase enzyme would lead to what expression…

A: A mutation is a change in the genetic material (the genome) of a cell of a live creature or a virus…

Q: In terms of the efficient use of bacterial resources, explain why it is necessary for lac operon…

A: Lactose can be broken down by E. coli bacteria to produce glucose and galactose. The lac operon…

Q: Why trp operon has a higher level of expression than live operon in bacteria grown on nutrient-poor…

A: Operon is a genetic regulatory system that is found in bacteria and viruses. This system controls…

Q: Please discuss positive regulation with respect to lac operon.

A: An expression of a gene is evidenced by the synthesis of the polypeptide chain encoded by the…

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: Explain how the following conditions will affect the regulation of the operon. Low cAMP levels; E.…

A: Operon is a sequence of DNA that consists of a set of genes which are involved in a particular…

Q: lacZ isn't expressed, in the presence and absence of glucose and lactose. What components of the lac…

A: If this cell had alternative carbon sources to use for ATP production, like glucose or some other…

Q: If the levels of both Glucose and Lactose were low in a bacterial cell, describe the state of the…

A: In bacteria and their viruses, an operon is a genetic regulatory structure in which genes coding for…

Q: -Discuss how the presence of glucose impacts the expression of the ara operon.

A: Introduction: The L-arabinose operon, which is called the ara or araBAD operon, for the breakdown of…

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: Suppose that E. coli sustains a mutation in its gene for the lac operon repressor making the…

A: When lactose is not present in the medium operon does not transcribe because of the presence of lac…

Q: Suppose that E. coli sustains a mutation in its gene for the lac operon depressor making the…

A: A lac operon is a group of genes with a single promoter ( it is transcribed as a single mRNA). The…

Q: Describe the role of the CRP–cAMP complex in positiveregulation of the lactose operon in E. coli.

A: The E. coli lac operon includes genes involved in lactose metabolism. It is only expressed when…