Question

A prophage is a(n) __________. View Available Hint(s) A prophage is a(n) __________. emerging virus viral genome that has been incorporated into a bacterial cell's chromosome virus that infects bacteria type of retrovirus

Answer 1

The given question is incomplete as it lacks the options, however the options are as follows:

a. emerging virus

b. viral genome that has been incorporated into a bacterial cell's chromosome

c. prion that has been integrated into a bacterial cell's chromosome

d. type of retrovirus

e. virus that infects other viruses

Answer:

The correct answer is option B.

Explanation:

A prophage is a viral genome or bacteriophage genome that is incorporated into bacterial cell's chromosome or present as an extrachromosomal plasmid. It is the part of lysogenic viral DNA that is located in the host's genome.

This is a phage that is latent that does not lead to the disruption of the bacterial cell even though the viral DNA present in the bacterium.

Thus, the correct answer is - option B.

Answer 2

Answer:

viral genome that has been incorporated into a bacterial cell's chromosome

Explanation:

Viruses are the intracellular parasite. All viruses require hosts to reproduce and increase their numbers. Virus has two reproductive cycles- the lytic cycle and the lysogenic cycle.  

In the lysogenic cycle, the viral genome gets incorporated into the bacterial host genome and replicates with the host genome. In this condition a virus is called prophage. In the lytic phase, the viral DNA gets transcribed and produce viral capsid proteins in which viral genetic material gets packed and new virus lyse the cell and release out of the cell.

Therefore when the viral genome gets incorporated in the bacterial host chromosome than it is called a prophage.