Alfred Hershey and Martha Chase performed experiments to show that A: the genetic material was DNA contained in the bacteriophage, which entered bacteria during phage infection. B:the genetic material was RNA contained in the bacteriophage, which entered bacteria during phage infection C:the genetic material was protein contained in the bacteriophage, which entered bacteria during phage infection D:none of these choices are correct

Q: How might a bacteriophage be used to treat bacterial infections in humans?

A: INTRODUCTION Bacteriophages These are the viruses that kills bacteria.

Q: he Escherichia coli cell infected by the phage codifies for the optimized ligand when the phage DNA…

A: A viral ligand is a receptor in which the viruses function as specific ligands and bind to the…

Q: is an enzyme found in retroviruses that converts the RNA genome into double- stranded DNA Answer:

A: The two main steps involved in protein synthesis are: transcription and translation. These two…

Q: triphosphates (dNTPs) or nucleoside triphosphates (NTPS).

A: Viruses are not capable of translating the proteins,  thus they are dependent on host machinery for…

Q: Which of the following is NOT true about transduction? O The bacteriophage's own viral DNA is the…

A: Bacteriophage transduction is a type of genetic transfer in which bacterial DNA is transmitted from…

Q: % Cells Cause Tumors Retrovirus Transformation Assay 120 100 80 60 40 20 0 10 -Virus A -Virus B 20…

A: Transduction is the process by which DNA is transferred from one bacterium to another or to a host…

Q: Describe and explain the difference in results if the serial dilution step of the T4 bacteriophage…

A: The T4 bacteriophage is a type of virus that infects bacterial cells. It is a complex virus that has…

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: Two different T4 rll mutants are used to co-infect E. coli strain K(A)". Lysis was extremely rare…

A: *T4 rII system is used to to investigate gene substructure. It is based on genetic crosses between…

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: You are determined to produce an antiserum for the next pandemic that has hit the world. You have…

A: Genetic modification is the method of altering an organism's genetic makeup using recombinant DNA…

Q: Eight mutant bacteriophage strains cannot lyse a certain type of bacteria that can be lysed by…

A: Complementation test is used to determine which genes help each other to get a wild type phenotype.

Q: The protein of T2 bacteriophage is labeled with 35S and the DNA with 32p. Where would one detect…

A: Introduction: An example of a virus that affects bacteria is the T2 bacteriophage. It belongs to the…

Q: Explain why only a virulent virus (like T4 phage), rather than a temperate virus, can be used in our…

A: If a virulent phage infects its host, it will produce more progeny as soon as phage DNA is injected…

Q: Ms. Carla was required to clone three different genes (Gene 1, Gene 2 and Gene 3) into PUC18. After…

A: Blue-white screening technique that can be used to identify the recombinant bacteria which have…

Q: Contrast the size of the single chromosome in bacteriophage l and T2 with that of E. coli. How does…

A: The bacteriophage is the virus that uses bacterial cells as the host.

Q: After a phage injects its DNA into a bacterial cell, the cell begins making proteins that make up…

A: Transduction can be defined as a systematic process with the help of which foreign DNA can be…

Q: 1. Choose the phrase from the right column that best fitsthe term in the left column.a.…

A: The microbiology studies about both the diseases causing microbes and beneficiary microbes, about…

Q: All of the following apply to Luria and Delbrűck’s mutation theory as tested using E. Coli and T1…

A: The answer is option c.  All of the following apply to Luria and Delbrűck’s mutation theory as…

Q: Please give reasons why  bacteriophage would not infect a bacteria

A: Bacteria are unicellular microscopic organisms that live in wide variety of environment. Bacteria…

Q: How is phage therapy different from antibiotic therapy? usually kill many kinds of bacteria,…

A: Antibiotics are medications that are used to slow down the growth of bacteria or kill them. There…

Q: Compare and contrast bacteriophage plaques with bacterial colonies.

A: A phage is consists of protein capsid and nucleic acid. A protein sheat that is contractile and…

Q: Phage M13 has often been used for Sel

A: Phage M13 has often been used for Phage display Phage display is a technique where the phage genome…

Q: The following are lambda phage gene deletions. What lambda lifestyle will result from each deletion?…

A: Lambda phage is a enterobacteria phage that is responsible for E.coli infection   It has a double…

Q: Match the statement with the correct term  Statement- -A group of HFr bacteria is mixed with a…

A: The objective of the question is to match the given statements with the correct biological terms.…

Q: 9). E. coli strain B was coinfected with two phage strains: one having a large clear plaque (hr)…

A: No, you do not need the rule of 2 in this case.The rule of 2 applies when analyzing a single cross…

Q: plaque

A: Bacterial growth: It is the increase in the number of bacterial cells but not the increase in the…

Q: Four different types of molecules, namely A, B, C and D were isolated from a primitive life form and…

A: All of these are likely to be the genetic material for the primitive life form.

Q: What is bacteriophage ?

A: Viruses are acellular in nature. They contain a genetic material made up of DNA or RNA which is…

Q: A bacterium is exposed to a drug that inhibits the N protein. Whatwould you expect to happen if the…

A: Nucleocapsid (N) protein of bacteriophage lambda (λ) activates the lytic phase of phage…

Q: In Figure 5-29, do you think that b+ could be transducedinstead of a+? As well as a+?

A: Given diagram represent the generalized transduction. During generalized transduction the gene…

Q: To understand the genes responsible for growth and infectivity in a disease-causing bacterial…

A: Site directed mutagenesis is technique in which Dna is altered and the altered gene product is used…

Q: Host DNA is digested into small pieces, which are occasionally assembled with phage proteins,…

A: Co transduction frequency is defined as the term that is used to explain the phenomenon that two…

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: Which of the following experimental techniques was used by Hershey and Chase to establish the…

A: Answer : option 3) Isotope labelling is correct.

Q: Why are prokaryotes able to replicate so much more quickly than eukaryotes? What cellular components…

A: Prokaryotes are very simple in structure as compared to eukaryotes. Their genome is also very simple…

Q: In transduction, bacterial DNA packaged into the proteincoat of a phage is the vehicle for gene…

A: Transduction is a process of genetic recombination in bacteria wherein horizontal gene transfer…

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: The experiment shown above was designed by Row A B. C D. i Hershey & Chase Hershey & Chase Meselson…

A: In the year 1952, two geneticists- Alfred Hershey and Martha Chase, conducted series of experiments…

Q: Prophages and proviruses have been described as being similar to bacterial plasmids. How are…

A: Several molecular structures and techniques are used in genetics for the manipulation of genes or to…

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.