About transduction and how it takes place with the help of the lytic cycle. Also, the type ofgenetic material present in the P1 phage in the lysate and in the P1 phage. Introduction: Transduction occurs when the virus infects a host cell of bacteria and then transfers the genetic material into other bacterial cells through the infected bacteria. The bacteriophages have a protein layer around their genetic material and this helps them to bind with the bacterium. This occurs when the bacteriophage attaches itself to the bacteria. The introduction of genetic material of the virus-cell into the bacterial cell occurs through this process. The bacteriophage follows a lytic process and this helps them to inject the genetic material into the bacterial cells.

Question

Want to see the full answer?

Answer 1

Question

Chapter 7, Problem 11CONQ

Summary Introduction

To review:

About transduction and how it takes place with the help of the lytic cycle. Also, the type ofgenetic material present in the P1 phage in the lysate and in the P1 phage.

Introduction:

Transduction occurs when the virus infects a host cell of bacteria and then transfers the genetic material into other bacterial cells through the infected bacteria. The bacteriophages have a protein layer around their genetic material and this helps them to bind with the bacterium. This occurs when the bacteriophage attaches itself to the bacteria. The introduction of genetic material of the virus-cell into the bacterial cell occurs through this process. The bacteriophage follows a lytic process and this helps them to inject the genetic material into the bacterial cells.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

In Hershey-Chase experiment, bacteriophages protein coats were tagged with radioactive isotope S-32. These phages were used to infect E. coli cells and the cells were further centrifuged to form pellets. Why was the radioactivity level of S-32 found greater outside the cells compared to the E. coli cell pellets? Explain briefly. If the experiment is repeated in the same manner but this time the phage protein coats are labelled with isotope X and the phage DNA with isotope Y, which isotope’s radioactivity will be found in greater amounts in the E. coli cell pellets after centrifugation? Explain briefly.

One of the reasons why phage therapy has not been applied widely is that bacteria can become resistant to bacteriophages as well, through mutations in genes encoding for specific proteins. What would be a protein in the bacterial cell that, if mutated, would make that cell resistant to phage infection?

In order to determine the genetic material of a T2 phage, Alfred Hershey and Martha Chase conducted experiments using T2 phages that infected bacteria. In one treatment, they grew phages with radioactive sulfur. In another treatment, they grew phages with radioactive phosphorous. They allowed both types of phages to infect bacterial cells. After infection, they found that only bacteria infected with phages grown with radioactive phosphorous showed any radioactivity. Why did they use radioactive sulfur and phosphorous for this experiment? * O Sulfur is part of the DNA molecule but not part of a protein molecule. Sulfur and phosphorous are some of the most reactive molecules and are easily traced. Sulfur and phosphorous are able to survive the centrifuge, a crucial component of the experiment. O Phosphorous is part of the DNA molecule but not part of a protein molecule.