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Infection Control › ViewWhat is the single most effective way to break the chain of infection?
A. handwashing
B. sterilization
C. cleaning surfaces
D. nutrition
Biotechnology: Tools & Techniques › View
How are restriction enzymes used in genetic engineering?
A. To amplify genes for study
B. To cut DNA at specific sequences for gene manipulation
C. To create new DNA strands
D. To prevent gene expression in bacteria