Hello student,
actually your question is not clear and also have not mention in which state you belongs to so it is quite difficult for us to answer this question. But however there are lots of entrance examinations for MSc microbiology which is a two years long degree course.. here is a list of some popular examinations, you have to study hard and go through their syllabus for more details
Some University also so complete their admission process with the merit score. However comment down for more information
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