The presence-absence test is a modification of which test?

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The presence-absence test is a modification of the most probable number (MPN) test. In the MPN test, serial dilutions of a sample are made, and the presence or absence of growth in each dilution is recorded to estimate the number of microbial cells present in the sample. The presence-absence test involves inoculating a sample into a growth medium and recording the presence or absence of microbial growth after incubation. It is often used as a screening test to quickly determine if a sample contains a specific microbe of interest. The membrane filter and virus plaque assays are not related to the presence-absence test.

The Presence-Absence Test Is a Modification of Which Test