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