When bacteriophage P1 causes E. coli to lyse, the resulting materialis called a P1 lysate. What type of genetic material would befound in most of the P1 phages in the lysate? What kind of geneticmaterial is occasionally found within a P1 phage?

Q: When a temperate phage infects a bacteria cell it O immediately undergoes the temperate lifecycle. O…

A: Phages can be either virulent or temperate. Lytic cycle is used for replication by virulent phage.…

Q: Which type of phages can perform   specialized  transduction?

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

Q: Indicate whether each statement applies to the lytic or lysogenic cycle of phage A, or to both. 1.…

A: The cyclic reproduction mechanism, by which virulent bacteriophage produces progeny virus by…

Q: Compare and contrast the lysogenic and lytic cycles of phage λ.

A: Phage lambda is a bacteriophage which infects E.coli bacteria. Bacteriophages are the viruses that…

Q: briefly describe four explanations why E. coli phages can only infect E. coli cells, but not other…

A: Question - briefly describe four explanation why E.coli phage can only infect E.coli cells, but not…

Q: Refer to the following illustration to answer the questic The illustration shows: O a lysogenic…

A: The transposable genetic element also named as mobile genetic element or jumping genes. They can be…

Q: The figure provided portrays the integration of Lambda phage into a host chromosome at the att site,…

A: In order to determine the change of the host bacterium status from gal- to gal +, the galactose…

Q: What is required to package the T4 genome into its phage head?

A: Introduction  T4 is a type bacteriophage which infects the E coli bacteria (Escherichia coli). It is…

Q: What are the reasons why bacteriophage does not infect a bacteria

A: A virus that infect bacteria are known as bacteriophage.

Q: In generalized transduction....   Choose from the answers below: random fragments of degraded…

A: Generalized Transduction : It occurs when random pieces of bacterial DNA are packaged into the phage…

Q: n Hershey and Chase’s experiment investigating which biological molecule carries genetic…

A: Hershey and Chase studied cells of the intestinal bacteria ie E.coli after injection by virus T2.

Q: Why are single-stranded binding (SSB) proteins required?

A: SSBs are nucleoproteins that can be found in bacteria, bacteria, and animals. When opposed to…

Q: How many bacteriophage particles were isolated from a single plaque? Howmany different strains of…

A: Bacteriophages, which are mainly infected bacteria are going through the lytic or the lysogenic…

Q: In the lysogenic cycle of bacteriophages, which of the fol-lowing is true?(a) Lysogeny is the term…

A: Answer- Viruses are the infectious particles that act as living organisms when present inside the…

Q: You are studying your favorite (hypothetical) bacteriophage named M277. It infects E. coli and stays…

A: *Viruses are specific in their species and they will effect every species on earth *The lytic cycle…

Q: E. coli

A: Bacterial Strain LE392 is used for both genomic and cDNA cloning. LE392 lacks the E. coli K…

Q: During the late stage T4 phage infection, the phage DNA is synthesized by Select one: O a. the DNA…

A: Bacteriophages are viruses that have bacterial as host cells.

Q: If a single bacteriophage infects one E. coli cell present in a cultureof bacteria and, upon lysis,…

A: single bacteriophage infects one E. coli cell present in a cultureof bacteria. Upon lysis it yields…

Q: In a petri dish with solidified agar with escherichia coli, enterobacter aerogenes and…

A: If lytic T4 bacteriophage initiates its infection by binding OmpC protein and lipopolysaccharide on…

Q: Which structure is result of phage genome site on bacterial chromosome?

A: A virus that parasitizes the bacterial cell and also replicates in it is called bacteriophage. The…

Q: In Hershey and Chase’s experiment investigating which biological molecule carries genetic…

A: In Hershey and Chase’s experiment, the protein coat was labelled with radioactive sulfur and the DNA…

Q: A bacteriophage λ is found that is able to lysogenize itsE. coli host at 30°C but not at 42°C. What…

A: Introduction  Viruses have two types of life cycles either the Lytic cycle or the Lysogenic life…

Q: How might genes, such as those responsible for drug resistance, be transferred between bacterial…

A: According to the question, we have to explain the process by which the genes, responsible for drug…

Q: If you wish to create an E. coli cell that is immune to phage lambda, which of the following genes…

A: Viruses are neither living or non-living organism. Virus has neither a DNA or RNA, just has a…

Q: A protocol calls for 10^3 phage particles as starting material. How much of your phage suspension…

A: Bacteriophage -- Phage means to eat .Bacteriophages are viruses which infect bacteria and phage…

Q: Which conclusions are consistent with these data? Why?  A) Strains A and B carry mutations in the…

A: Answer :- Option (C) is correct. - Strains B, C, and D carry mutations in the same gene.

Q: E. coli cells are simultaneously infected with two strains of phage λ. One strain has a mutant host…

A: A gene is a stretch of nucleotides present in the DNA molecule. It encodes information for the…

Q: T4 phage isolated from E. coli strain B infect E. coli strain K,

A: T4 is a capable of undergoing only a lytic cycle  the phage initiates an E.coli infection by…

Q: Determine the coefficient of coincidence and the interference

A: Coefficient of coincidence is the ratio between number of observed by number of expected double…

Q: When various strains of λ phage are seeded on a lawn of E. coli, they can form clear or turbid…

A: The Operon is the regulatory system present in DNA in cluster form, which contains structural genes…

Q: If two bacterial genes are 0.6 minute apart on the bacterial chromosome,what cotransduction…

A: Transfer of genes in prokaryotes occurs through horizontal transfer mechanisms such as transduction,…

Q: . In order for a phage to infect the host bacterium, it is preferred that the cell wall is newly…

A: In order for a phage to infect the host bacterium, it is preferred that the cell wall is newly…

Q: What advantages might a phage gain by being capable of lysogeny?

A: Lysogeny is a process of viral reproduction. It results in the combination of the DNA of the…

Q: What structures on bacterial host cells serve to allow bacteriophage to recognize them? What…

A: Bacteriophage is a type of virus that is composed of a head and tail. The head part contains a…

Q: What is meant by the term site-specific recombination as used in identifying the processes that lead…

A: Phages cannot reproduce on their own as they use their biological machinery in the host cell for…

Q: What enzyme is responsible for the production of viral DNA from a retrovirus?

A: REVERSE TRANSCRIPTASE are the main enzymes which is responsible for the production of Viral DNA from…

Q: Most phages that use DNA to propagate work by hijacking host bacterial machinery including RNA…

A: PhiKZ is a giant bacteriophage of Pseudomonas aeruginosa.

Q: Describe in general terms how bacteriophage lambda regulates the switch between lytic and lysogenic…

A: Bacteriophages are very small viral particles that infect bacterial host cells. The replication of…

Q: What is required for a bacteriophage T4 virion toattach to an Escherichia coli cell?

A: T4 bacteriophage is the well-studied member of Myoviridae, the most complex family of tailed phages.…

Q: Why does phage T4 need a lysozyme-like protein in order toinfect its host, and what part of T4…

A: Bacteriophages are the viruses that infect and replicate within the bacterial host. They are of two…

Q: Can a bacteriophage infect a human?

A: The micro-organism is the organism that is too small to be seen with the naked eye. It is viewed by…

Q: In which bacteriophage life cycle does the phage DNA become incorporated into the bacterial…

A: The viruses that infect bacteria are known as bacteriophages and they played a central role in…

Q: If you extract the DNA of the coliphage φ X174, you willfind that its composition is 25 percent A,…

A: Phages are viruses that infect bacterial cells.

Q: What is the “life” cycle of a T-even bacteriophage?

A: solution -  T-even Bacteriophage Definition - Viruses that infect Escherichia e coli are  called…

Q: From the perspective of a bacteriophage, what is the advantage of being able to follow either a…

A: Bacteriophage :A type of virus which infects and replicates inside  bacteria. These are composed of…

Q: Why can transfer of DNA by conjugation cross genus lines, whereas transfer of DNA by natural…

A: Transformation is the uptake of DNA from the outside environment. For a bacterial cell to be able to…

Q: Define the following terms:a. transpositionb. transposable elementc. bacterial transformationd.…

A: Deoxyribonucleic acid (DNA) is one of the major nucleic acids made up of polynucleotide chains that…

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.