My query is when OOS observed in any MET Sample, we identify the particular strain and after that perform Propogation Test. Mine query is why we do Propogation Test what is this test means in Microbiology? And also what is the procedure.
Another one is while performing GPT of Anaerobes we provide all anaerobic conditions like Anaerobic Jar and Gas Kit and to assure we add chemical indicator which indicates the whole process goes wright with colour change. So the indicator is covered with some wrapper so without take out from that wrapper how colour change done.