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

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

Question

Which of the following is best used for long term storage of microbial samples when carried out properly?

Options:

A . Storage in a freezer at -10°C

B . Storage in a freezer at ultra low temperatures (-70°C)

C . Storage in a refrigerator on an agar slant

D . Storage on a petri plate at room temperature

Answer: Option B

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