Most temperate phages integrate into the host chromosome, whereas some replicate

Question

Most temperate phages integrate into the host chromosome, whereas some replicate as plasmids. Which kind of relationship do you think would be more likely to maintain the phage in the host cell, and why?

A.Plasmids-they're smaller, so they'd be easier to replicate by the host cell.

B.Integrated-the host cell would be less likely to view this DNA as "foreign" on subsequent rounds of replication, and would retain it more easily.

C.Integration-because plasmids are frequently lost during cell division, which could leave a daughter cell without the virus genome.

D.Plasmids-these structures often carry other genes that may give the host cell a selective advantage over cells that don't have them.

Explanation / Answer

The correct answer answer is option B that is integration - The host cell would be less likely to view this DNA as "foreign" rounds of replication and would retain it more easily because virus genome needs to be replicated and proteins need to be made and for this regular duplication happens of the genome of phage has incorporated. So, when host replicates dna it will also get processed. This is the best way to maintain the phage in the host cell.

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