Dear all.,

Good evening.

I have 2 bacteria sample. I'm trying to clarify their bacteria species from biochemical tests result. I already confirm both of them is from Mehtylobacterium sp. but when I'm doing biochemical test, some of the test got different result. 1 have negative result and another is positive. I wonder if it happen because of they are from different strain? Is that possible? Thank you very much for all your opinion and answers.

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