why Penicillin inhibits PBP activity in wild-type cells

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: Describe four mechanisms that result in the generation ofantigen receptor diversity.

A: Antibodies are the antigen-binding glycoproteins that are synthesized exclusively by B- cells and in…

Q: The TRP operon functions by attenuation. Briefly explain how attenuation works and why it is…

A: Trp operon or the tryptophan operon is a group of genes that are responsible for tryptophan enzymes.…

Q: Pegard to bacteriophage lambda's decision to enter the lytic or lysogenic cycle, which of following…

A: INTRODUCTION A bacteriophage, or phage for brief , is a virus that infects bacteria. Like other…

Q: Why is the TAS2R38 gene also called the PTC gene

A: PTC is a chemical compound abbreviated as phenylthiocarbamide. It is also called phenylthiourea as…

Q: Which snRNP leaves in order to form the active spliceosome? OU1 U3 OU4 U2

A: At least five different types of snRNPs join mainly the spliceosome to specifically participate in…

Q: The process in which the two-dimensional structure of RNA from the L region of an operon can either…

A: The strategy of creating an RNA duplicate of a grouping is transcription. The transcript, known as…

Q: Give an example of a nucleoside analogue that has been used successfully as an antiretroviral drug.…

A: Nucleoside analogue can be defined as a class of drugs ,which are mainly used to as antiviral agent…

Q: It has been proposed that thiogalactoside transacetylase (LacA in the lactose operon) plays a role…

A: The lactose operon is an operon required for the transport and metabolism of lactose in E.coli and…

Q: What is the difference between REGULATORY VS SUBSTRATE DEPENDENT PATHWAYs. consider WT, single…

A: There are two types of paths available. Regulatory routes and assembly or metabolic processes have…

Q: nder what condition will there be more transcription initiation of the Trp operon? O Low tryptophan…

A: mAn operon is a cluster of genes that are transcribed together to give a single messenger RNA (mRNA)…

Q: Discuss the lysogrnic induction of bacteriophage lambda in coli cells

A: Viruses are microbes that have both living and non-living characteristics. They are obligate…

Q: It has been postulated that thiogalactoside transacetylase (LacA in the lactose operon) plays a role…

A: Introduction  An operon is a DNA functional unit that comprises a cluster of genes regulated by a…

Q: APC is a ubiquitin ligase activated by M-cyclin Cdk What is the function of APC when bound to…

A: An integral regulator of cell division that is encoded by the CDC20 gene in humans is the cell…

Q: hich of the following are NOT true about allolactose: It's formation requires expression of the lac…

A: Lac Operon is a cluster of genes that is required for the expression of genes to form proteins or…

Q: True or false If cells were treated with a weak base such as ammonia or chloroquine, which raises…

A: False

Q: Describe the function of CYP3A4?

A: Answer- CYP3A4 or cytochrome P450 3A4 is a human enzyme that is present and synthesized in the…

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: Question 31 Choose the answer with the events involved in transduction in the corre 1. A transducing…

A: Transduction can be defined as a one of the method of genetic recombination;in which the genetic…

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: Can you explain in technical detail how global control mechanisms of catabolite repression work?

A: Bacteria have a metabolic control mechanism called catabolite repression that enables them to adjust…

Q: Discuss the consequences that would result in nuclear export/import if Ran GTPase was mutated.

A: Mutations affecting the Ran GTPase, a pivotal regulator of nuclear-cytoplasmic transport, can have…

Q: what is the purpose of arabinose for the gfp gene?

A: Arabinose is a constituent of many biopolymers that make up the plant cell walls.it is a…

Q: Which of the following arabinose operon regulatory sites is exclusively involved in the repression…

A: Answer - Option B - ara O2

Q: The lac operon consists of the control elements and _____________ that code for the enzymes of…

A: The regulatory mechanism of operon responsible for the utilization of lactose as a carbon source is…

Q: True or False? p21 inhibits the S-cyclin/S-Cdk complex.

A: p21 is a cyclin-dependent kinase inhibitor that is activated by p53 transcriptionally when DNA…

Q: Why is the trp attenuation mechanism unique to prokaryotes?

A: Attenuation is a control mechanism that operates to regulate the expression of genes of an operon.…

Q: Defend or attack this statement: “All eukaryotic promoters have TATA boxes.”

A: Promoter is defined as DNA region where initiation of gene transcription takes place. They regulate…

Q: True or false: The lac operon is regulated by the binding of an enhancer to sequences just upstream…

A: The lac operon is associated with the transport and metabolism of lactose in E.coli specially. The…

Q: The symbols A, B, C, D, E represent all the components of the lac operon, excluding LacA. The…

A: The lac operon regulates gene expression in lactose metabolism in E. coli. It is composed of a…

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: When referring to attenuation in the regulation of the trp operon it would be safe to say that, when…

A: Attenuation is a regulatory mechanism that is employed in bacterial operons to guarantee that…

Q: Some elongation factors are evolutionarily related to the G-proteins involved in signal…

A: The elongation factors and the G proteins are evolutionary related. both of them utilise the high…

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: Explain karyopherin exportins? What is it? What is its function? Why is is important for the…

A: Karyopherins, otherwise called importins or exportins, are essentially a family of nuclear transport…

Q: Why is generalized transduction able to transfer anygene, but specialized transduction is restricted…

A: Introduction: transduction is a process of gene transfer in bacteria from donor to recipient…

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