alleryAt what temperature range are collected stem cell samples preserved in vials?
A0 degree C to -20 degree C
B-4 degree C to -40 degree C
C-135 degree C to -190 degree C
D+10 degree C to -10 degree C
Answer & Solution
Correct answer: C. -135 degree C to -190 degree C
1. Stem cell samples must be stored at very low temperatures to stay viable.
2. The vials are kept in liquid nitrogen at -135 degree C to -190 degree C.
3. The warmer ranges listed would not preserve the cells in liquid nitrogen conditions.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 8 "Cell Biology and Biotechnology", p.98_
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