Which region of the h phage genome enables the linear chromosome to circularize when it enters a host cell?
A) cohesive (cos) site
B) early operators
C) integrase (int) gene
D) IS10
E) excisionase (xis) gene

Question

Quizplus · Accepted Answer

The cohesive (cos) site on the lambda phage genome is responsible for the circularization of the linear chromosome once it enters a host cell. This site allows the ends of the DNA to come together and form a circular molecule, which is necessary for the phage DNA to replicate and be integrated into the host's genome.

Which Region of the H Phage Genome Enables the Linear