Describe the role that integrase plays during the insertion of λDNA into the host chromosome.

Q: In generalized transduction, transducing particule carries -- in place of Which of the following is…

A: Lateral gene transfer or horizontal gene transfer (HGT) is the movement of genetic material between…

Q: Certain environmental conditions such as exposure to UV light areknown to activate lysogenic λ…

A: Lambda (λ) phage is a bacterial virus, or bacteriophage, which infects the bacterium Escherichia…

Q: Is the Degradation of Xrn1 in poliovirus-infected cells an example of virus-encoded molecules…

A: No, this mechanism is a common theme in viral infection, including poliovirus infection. This is…

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: Briefly explain how genes in phages are mapped.

A: In bacteriophage, the mapping of genes depends upon the homologous recombination between the phage…

Q: Why is a host-cell tRNA needed for reverse transcription?

A: Reverse transcription is a process used by retroviruses(RNA viruses) which encodes its RNA genome…

Q: Explain the difference between the two bacteriophagereplication pathways

A: They are non cellular entities which have their RNA (ribonucleic acid) or DNA(deoxyribonucleic acid)…

Q: The RNA transcript of a region of T4 phage DNA contains the sequence 5’-AAAUGAGGA-3'. This sequence…

A: The bacteriophage T4 encodes 10 proteins, which are collectively known as the replisome, that are…

Q: Briefly explain how bacteriophages can transduce genes between bacteria

A: Introduction :- Bacteriophages (BPs) are bacteria-infecting viruses that kill bacteria without…

Q: Why is protein expression of recombinant DNA induced during the log phase of bacterial growth? Why…

A: Recombinant Protein is a protein that is encoded by a gene that has been cloned into a system that…

Q: Outline a series of steps by which reverse transcriptase produces DNA on an RNA template.

A: Reverse transcriptase is an enzyme that synthesizes complementary deoxyribonucleic acid (cDNA) by…

Q: Write in detail about the effects of presence as well as absence of multiple cloning site and…

A: MULTIPLE CLONING SITE. Also known as polylinker region, is a DNA region found in plasmid which have…

Q: What is a transducing phage?

A: Transduction is the process by which foreign DNA is introduced into the cell by a suitable virus or…

Q: How does a host cell harboring a restriction enzyme protect its own DNA?

A: host cell harboring a restriction enzyme protect its own DNA by :

Q: In immediate-early transcription of the phage genome, the N protein works as an antiterminator to…

A: Lambda phage is a bacteriophage which can enter either the lytic or lysogenic cycle. The…

Q: Which of the following statements is not true of both the LacI and TrpR repressor proteins?a) an…

A: The objective of the question is to identify the statement that is not true for both LacI and TrpR…

Q: Predict the effect on the activity of the lac operon of a mutation that disrupts the function of: a)…

A: The Catabolic Activator Protein (CAP) is a protein which acts as a positive regulating factor for…

Q: The cI protein in bacteriophage l (lambda) is a transcriptional regulator - name the promoters in…

A: cI is a transcription inhibitor of bacteriophage Lambda. It is also known as Lambda Repressor and is…

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: Are the relative positions of the genes or the operon in the plasmid important?

A: Relative positions of the genes or the operon are important in plasmid, because expression of a gene…

Q: Which of the following is false when the genes of the Lac operon are being tran- scribed in high…

A: Lac operon is a set of genes used by E.coli to metabolize lactose when glucose is not available for…

Q: In Conjugation,Why  a Donor TransfersDNA Directly to a Recipient?

A: The mechanism involving transfer of genetic material between species of unrelated generations is…

Q: Some organisms have mechanisms in place that will override transcription termination. One such…

A: The HIV-1 (Human Immunodeficiency virus-1) Tat (transactivator of transcription) gene codes for a…

Q: Briefly, explain specialized transduction and conjugation.

A: Transduction: It is the process by which foreign DNA is introduced into a cell by a virus or viral…

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: St

A: Answer-- RAD51 is a protein coding gene.RAD51 plays significant role in homilogouh recombination of…

Q: Is the Degradation of Xrn1 in poliovirus-infected cells an example of virus-encoded molecules…

A: The objective of the question is to understand whether the degradation of Xrn1 in…

Q: How Host Cells Take Up and AmplifyRecombinant DNA?

A: Recombinant DNA technology is the joining together of DNA molecules from two different species. The…

Q: Why is formation of the replicative form of fX174 necessary inorder to make phage-specific mRNA?

A: DNA is the genetic material in most of the organisms. It is mostly double-stranded but some viruses…

Q: The mechanism by which lactose controls the lac of A) O Catabolite repression B) O DNA polymerase C)…

A: Operons are studied to understand the regulation of gene expression. It is studied under the domain…

Q: Describe how the one step growth experiment demonstrates the events that take place during the lytic…

A: One step growth experiment: In this experiment only a single or one cycle of virus growth is…

Q: Describe the process of inserting DNA into a vector

A: The process of inserting a desired fragment of DNA or a gene of interest into a self-replicating…

Q: Give at least four types of food processing and explain its processes and applications.

A: Food Processing modification or changes to a plant or animal product after harvesting.  Types of…

Q: Figure 14.23 shows a genetic switch that controls the choice between the lytic and lysogenic cycles…

A: The cellular activities are controlled by its internal habitat. The adaptation of cells to…

Q: List the step common to all viral replication pathways.

A: ANSWER:   Viruses are obligate intracellular pathogens therefore Virus particles need the machinery…

Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.