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How do the structures of bacteriophages help them infect the host?
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What are radioactively tagged bacteriophages to discover that DNA not protein is injected into host cells?
Avery are radioactively tagged bacteriophages to discover that DNA, not protein is injected into host cells.
What do bacteriophages obtain from host cells?
Bacteriophages obtain nutrients and energy from host cells in order to replicate. They also hijack the host cell's cellular machinery to produce new viral particles.
How can a bacteriophage virus controle the host as they have no enzyme and protein in start?
bacteriophages donot require protein to controle their host, the initial stage of controlling the host begins with the help of lytic cycle which includes the adsorbtion of the phage and insertion of the dna material inside the bacteria and then replicating it and controlling the the whole bacteria.
Are viruses general or specific to the cells that they infect?
viruses are specific to the cells they infect called host cells
Why does influenza have RNA?
Influenza has RNA because it steals DNA/RNA from host cells. Proteins also help infect the DNA/RNA.
What are radioactively tagged bacteriophages to discover that DNA not protein is injected into host cells?
Avery are radioactively tagged bacteriophages to discover that DNA, not protein is injected into host cells.
What is a kingdom specific infection?
A kingdom-specific infection refers to the manner in which viruses can only infect specific types of host cells. For example, a virus that infects a plant cannot infect a dog or a human, because plants are members of a different kingdom. Likewise, a virus that infects a bacteria (bacteriophages) cannot infect a plant or a bird.
What do bacteriophages obtain from host cells?
Bacteriophages obtain nutrients and energy from host cells in order to replicate. They also hijack the host cell's cellular machinery to produce new viral particles.
The event that occurs in bacteriophage multiplication that does not occur in animal virus replication is?
The event that occurs in bacteriophage multiplication that does not occur in animal virus replication is the injection of only the viral nucleic acid into the host cell. Viruses that infect bacteria are specifically called bacteriophages.
How does the structure of a virus help it survive?
The capsid of the cell helps the virus to infect host cells as well as multiply quickly.
How is the entrance of bacteriophages into their host cell different than the entrance of animal viruses into their host cell?
Bacteriophages enter a host cell by attaching to specific receptors on the surface of bacteria, including lipopolysaccharides, techoic acids, proteins, and flagella. For for a virus to infect a host cell, the cell must have receptors on its surface for the virus to attach to. The receptors are normal molecules involved in routine cellular function, but a portion of the surface of the virus resembles the chemical shape of the body's molecule that would normally bind to the receptor, allowing the binding of the virus to cell to happen.
Do bacteriophages multiply and how?
They do multiply and it's accomplished by injecting DNA into a host cell (bacteria in this case) and forcing the cell to synthesize the virus DNA, effectively creating more bacteriophages with the bacteria's own protein. The bacteria eventually bursts and the new bacteriophages are released to live happily ever after.
How can a bacteriophage virus controle the host as they have no enzyme and protein in start?
bacteriophages donot require protein to controle their host, the initial stage of controlling the host begins with the help of lytic cycle which includes the adsorbtion of the phage and insertion of the dna material inside the bacteria and then replicating it and controlling the the whole bacteria.
Are viruses general or specific to the cells that they infect?
viruses are specific to the cells they infect called host cells
Why does influenza have RNA?
Influenza has RNA because it steals DNA/RNA from host cells. Proteins also help infect the DNA/RNA.
What is the pathogen attacks specific cells and injects genetic materials?
Viruses attach specific cells and inject genetic material. There are viruses called bacteriophages that infect bacteria be injecting their genetic material into the bacterial host and invading their protein machinery. With animal viruses that infect animal cells (much larger than bacteria), the virus either injects genetic material OR gets into the cell whole before it begins to unleash its pathogenic effects
Does the ability of a Mycobacterium tuberculosis cell to infect a new host depend on its drug-resistant phenotype?
No, drug-susceptible cells and drug-resistant cells are equally likely to infect a new host.
