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How did Hershey and Chase separate the phages from the bacteria?
Blender
What did hershey and chase discover after the p-labeled phages infected the bacteria most of the radioactive phosphorous found in the layer containing?
Hershey and Chase discovered that after the P-labeled phages infected the bacteria, most of the radioactive phosphorus was found in the viral DNA, while little to no radioactive sulfur (used to label protein) was found. This confirmed that genetic material, not protein, is responsible for heredity in viruses.
Can two phages infect bacteria at a time?
It can be.in this way we can obtain new phages thah share genes of bpth phages.
What attaches to the bacteria and injects the hereditary material?
A bacteriophage. A virus that lands on the bacteria and injects the genetic material. Often, T even phages. ( T-2 and T-4 phages )
What is the material that phages insert into bacteria?
Phages insert their genetic material, which is typically DNA, into bacteria. This genetic material carries the instructions for the phage to replicate itself within the bacterial cell.
Can virus get a bacteria?
Yes- Bacterial viruses are called bacteriophages. Some examples are T4 and T7 phages. They are complex DNA viruses that attach themselves to the cell surface and then inject their DNA to the inside of the bacteria. Bacteria have enzymes called restriction enzymes that cleave DNA at specific sites called restriction sites. These enzymes are the bacterium's defense against phages.
Describe the experimental design that allowed Hershey and Chase to distinguish between the two options for genetic material?
Hershey and Chase knew that the particular phage they worked with has two basic components: DNA on the inside, coated with protein on the outside. In their expt theylabelled phages with radioisotopes . For one batch of infecting phages, they used a radioactive isotope of sulfur to label only the phages' protein coats.In another batch of phages, they used a radioactive isotope of phosphorus to label only DNA. Next, they allowed each batch of phages to infect separate cultures of nonradioactive bacterial cells. They then whirled each culture in a blender to shake loose any parts of the phages that remained outside the bacterial cells. Result of expt. confirmed that only DNA of phage entered bacteria .
What did Hershey and chase find through their experiment with infected bacteria?
The genetic mateial is made of DNA and not of proteins
What virus infect bacteria?
Bacteriophages are viruses that infect and replicate within bacteria. These viruses inject their genetic material into a bacterium, which then uses the bacterium's machinery to produce more phages. This eventually leads to the lysis of the bacterium and release of new phages to infect other bacteria.
Why bacteriophage transfer only DNA or RNA into a bacteria but not the protein?
phages can range from 50nm to 200nm.This dimension dont favorizied virused to enty intairlly into their host bacteria.Cell wall of bacteria it is composed of peptidoglycan a glicoprotein that it protect bacteria again enviromental stress and agents.For this reason phages have evolved to inject their genome to the host bacteria.
How are the lytic cycle and lysogenic cycl diffrent?
Phages have lytic or lysogenic cycle to reproduce themself.Phages that have lytic life cycle it kill bacteria after new progenicy of phages are relaset from host bacteria.Phages with lysogenic cyclel it integrate their DNA to the host bacteria.However, when bacteria that carry genetic material of lysogenic phages are posed to stress can switch to the lytitic cycle to produce a new progeny of pahages.
What is meant by germs even get germed?
Bacteria can be attacked by viruses called bacteriophages or somtimes just 'phages.
