Scelta multipla
Plant viruses spread throughout the plant by way of __________.
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17. Viruses
Viruses
Scelta multipla
A prophage is a(n) __________.
A
emerging virus
B
virus that infects other viruses
C
type of retrovirus
D
prion that has been integrated into a bacterial cell's chromosome
E
viral genome that has been incorporated into a bacterial cell's chromosome
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Understand the context: A prophage is related to bacteriophages, which are viruses that infect bacteria.
Recognize that a prophage is a stage in the life cycle of a bacteriophage, specifically during the lysogenic cycle.
In the lysogenic cycle, the viral DNA is integrated into the host bacterium's chromosome, becoming a prophage.
The prophage can remain dormant within the bacterial genome until certain conditions trigger its activation.
Thus, a prophage is best described as a viral genome that has been incorporated into a bacterial cell's chromosome.
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