Specialiserad transduktion
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The main difference between generalized and specialized transduction is that bacteriophages can take any portion of the host genome in generalized transduction, whereas bacteriophages pick up only a specific part of the host’s genome in specialized transduction.
Generalized and specialized transduction are two methods of transduction in which foreign DNA is introduced into the host cell by a virus.
Key Areas Covered
1. What is Generalized Transduction
– Definition, Features, Importance
2. What is Specialized Transduction
– Definition, Features, Importance
3. Similarities Generalized and Specialized Transduction
– Outline of Common Features
4. Difference Between Generalized and Specialized Transduction
– Comparison of Key Differences
Key Terms
Generalized Transduction, Specialized Transduction
What is Generalized Transduction
Generalized transduction is a process in which phages package any bacterial DNA, including chromosomal and plasmid DNA, and transfer it to another bacterium. When bacterial DNA is packed into the head of the phage, the bacteriophage is called the transducing particle. Earlier, it was thought that host
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Transduction is one process of transferring a bacteria’s DNA (deoxyribonucleic acid) to another with the help of a virus (bacteriophage). Genetic transfer of host genes by bacteriophage occurs in two ways; generalized transduction and specialized transduction. Bacteria transfer their gene through other processes like transformation and conjunction. The bacteriophage and the target bacteria mediate the transduction of the bacterial gene, for example. P22 bacteriophage mediates the transduction (generalized and specialized) in the Salmonella typhimurium.
Specialized transduction is the process where the phage carries only a specific part of the host’s (bacteria) DNA as a part of the viral genome. It only occurs during the lysogenic cycle of bacteriophage and in some temperate phages. But specialized transduction is a highly efficient gene transfer mechanism.
Temperate phage is the phage that undergoes a lysogenic cycle for growth and multiplication.
Lytic and Lysogenic Cycle
Before discussing the steps of specialized transduction, let us briefly discuss the lytic and lysogenic cycle of bacteriophage.
The lytic cycle is the process of viral multiplication where the
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Skillnad mellan generaliserad och specialiserad transduktion
Huvudskillnad - Generalized vs Specialized Transduction
Transduktion är enstaka mekanism likt överför DNA från enstaka bakterie mot en ytterligare bakterie från en bakteriofag. Bakteriofag existerar ett virus som infekterar och replikerar inom enstaka bakterie. Den har förmåga att fästa vid bakteriecellens vägg samt injicera dess DNA mot bakterien. Inuti bakterien replikerar viralt DNA och skapar nödvändiga komponenter och enzymer för för att göra nya många bakteriofager. Under denna process bryts bakteriellt DNA i bitar och bli en del av med viralt genom alternativt viral DNA integreras direkt med bakteriellt DNA. Nya bakteriofager små frukter från växter bakterie DNA inuti dem. När dessa bakteriofager infekterar andra bakterier uppstår blandning av bakteriellt DNA. Transduktion kan ske antingen genom lytisk tvåhjulig eller lysogen cykel baserat på bakteriofagens typ. Därför finns detta två typer av transduktion, nämligen generaliserad transduktion samt specialtransduktion. Den viktigaste skillnaden mellan generaliserad och specialiserad transduktion existerar det generaliserad transduktion görs av virulenta bakteriofager var bakteriell fängelse lyseras då nya bakteriofager släpps medan