Final answer:
In a disc diffusion test, a resistant microbe would show little to no zone of inhibition around the disc, indicating that the antibiotic is ineffective in inhibiting its growth.
Step-by-step explanation:
In a disc diffusion test to measure sensitivity, a resistant microbe would show little to no zone of inhibition around the disc. A zone of inhibition is an area of clearing that indicates the effectiveness of an antibiotic in inhibiting bacterial growth. A larger zone of inhibition suggests that the antibiotic is more effective in killing the bacteria, while a smaller or absent zone of inhibition indicates resistance to the antibiotic
.