Which of the following is best used for long term storage of microbial – McqOptions

MCQOPTIONS

1.	Which of the following is best used for long term storage of microbial samples when carried out properly?
A.	Storage in a freezer at ultra low temperatures (-70°C)
B.	Storage in a freezer at -10°C
C.	Storage on a petri plate at room temperature
D.	Storage in a refrigerator on an agar slant
Answer» B. Storage in a freezer at -10°C

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