The technique in which the cells are subjected to cold temperature of about -15° C to -25° C is referred to as . . . . . . . .
A. Ultrasonics
B. Freezing
C. Homogenization
D. Osmotic shock
Answer: Option B
Related Questions on Enzyme Engineering in Biotechnology
Which of the following is the best method for isolating enzymes from cell free extract?
A. pH treatment
B. Temperature treatment
C. Chemical treatment
D. Osmotic shock
Which of the following enzyme is used to join two DNA molecule
A. Nuclease
B. Restriction enzymes
C. Lyases
D. Ligases
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