In: Biology
Compare/contrast generalized transduction v. specialized transduction. Which statement among A-C is false?
A. Generalized transduction occurs as a result of an error in virus assembly during lytic bacteriophage infection
B. Specialized transduction originates from a lysogenic bacteriophage infection
C. For both transduction processes, theoretically, any gene from the initial phage host cell can be transferred to the next host cell.
D. None of A-C is false
There are two types of transduction. They are 1. Generalized
transduction and 2. Specialized transduction.
In generalized transduction, the bacteriophages can pick up any
portion of the host's genome. In contrast, with specialized
transduction, the bacteriophages pick up only specific portions of
the host's DNA.
During transduction, a virus transfers DNA from one bacterium to
another bacterium. Viruses that infect bacteria are called
bacteriophages. These bacteriophages can accidentally pick up DNA
from host bacteria during the production of new viral particles,
then inject this bacterial DNA into another bacterial cell that
they infect in generalized transduction.
Specialized transduction occurs when the prophage excises
imprecisely from the chromosome so that bacterial genes lying
adjacent to the prophage are included in the excised DNA.
In both types of transductions, any gene from the initial phage
host cell can be transferred to the next host cell.
Hence, option, "C" is the correct answer.