The plasmid pBR322 has both Amp-R (resistance to ampicillin) and Tet-R (resistance to tetracycline) genes. In the Tet-R gene, there is a unique XbaI site. If you insert a piece of DNA into this XbaI site, how will you select for your recombinant DNA?

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

so whats the answer

bacterium is not correct

which fault and or fold did you find most difficult to diagram