Question

Name the regions marked A, B and C.

Answer 1

pBR322 diagram:


Labeling of A, B and C:

The image given in the question is of plasmid pBR322.

$\bullet$ Region A: Restriction site of restriction endonuclease BamH I

$\bullet$ Region B: Restriction site of restriction endonuclease Pst I

$\bullet$ Region C: Ampicillin resistance gene, ampr, which acts as a selectable marker

Final answer A - BamH I, B - Pst I, C - $am{p}^r$