List of top Microbiology Questions on Microbial Assay asked in GPAT

In tube dilution test used for bactericidal agent stainless steel cylinder are incubated with test organism and produce for:

According to the IP, the standardization of Vitamin $B_{12}$ is done using a microbial assay. The test organism used is:

The optimum temperature for rapid growth of mesophiles is:

The resistance to macrolide antibiotics by of gram positive organism is developed due to