a researcher is preparing to insert a human gene of interest into a bacterial plasmid in order to clone the human gene. she has genetically engineered the plasmid to carry a gene amp r , which confers resistance to the antibiotic ampicillin. she will include ampicillin in the plating medium when she grows the recombinant bacteria. why has she engineered the plasmid to include an antibiotic resistance gene? choose the best answer. a circular bacterial plasmid. this plasmid contains an ampr gene, a bacterial plasmid, and a lacz gene. the ampr gene is a gene for ampicillin resistance. the bacterial plasmid is a cloning vector. the lacz gene is a gene for lactose breakdown. the lac z gene has a restriction site. a researcher is preparing to insert a human gene of interest into a bacterial plasmid in order to clone the human gene. she has genetically engineered the plasmid to carry a gene amp r , which confers resistance to the antibiotic ampicillin. she will include ampicillin in the plating medium when she grows the recombinant bacteria. why has she engineered the plasmid to include an antibiotic resistance gene? choose the best answer. recombinant bacteria that have taken up the plasmid can be recognized because the antibiotic resistance gene produces a blue color. recombinant bacteria that have taken up the plasmid are vulnerable to infection and require antibiotic resistance. recombinant bacteria that have taken up the plasmid can be recognized because they are able to survive in the presence of ampicillin.