If recombinant DNA carrying antibiotic resistance gene (e.g. ampicillin) is transferred into E. coli cell, the host cell is transformed into ampicillin resistant cells. The ampicillin resistant gene in this case is called a

Question

If recombinant DNA carrying antibiotic resistance gene (e.g. ampicillin) is transferred into E. coli cell, the host cell is transformed into ampicillin resistant cells. The ampicillin resistant gene in this case is called a (A) vectors (B) plasmid (C) selectable marker (D) cloning sites

Tardigrade Admin · Accepted Answer

Gene encoding resistance to antibiotics like ampicillin, chloramphenicol, tetracycline or kanamycin, useful for cloning are called selectable markers. These are suitable selectable markers for E. coli as the normal E. coli cells do not carry resistance against any of these antibiotics.

Q. If recombinant DNA carrying antibiotic resistance gene (e.g. ampicillin) is transferred into E. coli cell, the host cell is transformed into ampicillin resistant cells. The ampicillin resistant gene in this case is called a

vectors

plasmid

selectable marker

cloning sites

Gene encoding resistance to antibiotics like ampicillin, chloramphenicol, tetracycline or kanamycin, useful for cloning are called selectable markers. These are suitable selectable markers for E. coli as the normal E. coli cells do not carry resistance against any of these antibiotics.