Question

lets say you inoculate four agar plates, each containing a different antibiotic (a, b, c, and d), and you add a swab from a lesion taken from a patient. after incubating the plates, you observe that plate a has only a few colonies, while the others all have many colonies. how do you interpret the results? 4.54 points multiple choice bacteria in the patients sample carry a mutation that makes them resistant to antibiotic a none of these antibiotics are an acceptable choice to use to treat the patient for this bacterial infection bacteria in the patients sample are resistant to antibiotic a but not b, c, and d bacteria in the patients sample are susceptible to antibiotic a but not b, c, and d

Explanation:

Fewer colonies on plate A with antibiotic A indicate that the bacteria are inhibited by it, meaning they are susceptible. More colonies on plates B, C, and D mean the bacteria are not as affected by those antibiotics.

Answer:

D. Bacteria in the patient's sample are susceptible to antibiotic A but not B, C, and D