Most Drug-Resistant Bacteria Isolated from Patients Contain A(n)

Question

Most drug-resistant bacteria isolated from patients contain a(n)
A) R plasmid.
B) T1 phage.
C) reverse transcriptase.
D) β-lactam.

Accepted Answer

R plasmids are mobile genetic elements that carry genes coding for antibiotic resistance. They are often responsible for the spread of resistance among bacterial populations. Therefore, most drug-resistant bacteria isolated from patients are expected to contain R plasmids. T1 phages are bacteriophages that infect E. coli, but they are not related to antibiotic resistance. Reverse transcriptase is an enzyme that converts RNA into DNA, and it is not directly involved in antibiotic resistance. β-lactam antibiotics are a type of antibiotic that inhibit bacterial cell wall synthesis, but they are not a feature of drug-resistant bacteria itself.