Related Questions

If a plasmid is having two antibiotic resistant genes, say ampicillin resistant and chloramphenicol resistant. If the plasmid grows in ampicillin containing medium but not in chloramphenicol, what can be concluded?
Which of the following is a bactericidal antibiotic?
Once a plasmid has incorporated specific genes, such as the gene coding for the antibiotic ampicillin, into its genome, the plasmid may be cloned by
A certain antibiotic X is effective only against a few types of harmful microbes and cells. X is a _______ antibiotic.
A bacterial culture (200 μL containing 1.8 × 109 cells) was treated with an antibiotic Z (50 μg per mL) for 4 h at 37°C. After this treatment, the culture was divided into two equal aliquots.
Set A: 100 μL was plated on Luria agar.
Set B: 100 μL was centrifuged, the cell pellet washed and plated on Luria agar.
After incubating these two plates for 24 h at 37°C, Set A plate showed no colonies, whereas the Set B plate showed 0.9 × 109 cells. This experiment showed that the antibiotic Z is
Which of the following serves as bactericidal agent?
Which of the following serves as a bactericidal agent?
Wavelengths around ___________ have the highest bactericidal efficiency.
Yeast centromeric plasmid (YCp50) contains ampicillin and tetracycline resistant gene.
Transformants of pBIN19 are selected by growing them in solid agar media with ampicillin.