Name the regions marked A, B and C.

What would happen when one grows a recombinant bacterium in a bioreactor but forget to add antibiotic to the medium in which the recombinant is growing?

Identify and explain steps ‘A’, ‘B’ and ‘C’ in the PCR diagram given below.

For selection of recombinants, insertional inactivation of antibiotic marker has been superceded by insertional inactivation of a marker gene coding for a chormogenic substrate. Give reasons.

Describe the role of Agrobacterium tumefaciens in transforming a plant cell.