![]() Multiple point mutations in a DNA sequence from eukaryotic or prokaryotic organisms in which each mutation occurs by substitution of a purine base for a pyrimidine base or vice versa. He could not open the door without first closing the closet door, and vice versa. (Device Energy Storage System Problem Evaluation Result, Food and Drug Administration) Such devices may be electrical, fluidic or mechanical and are sometimes used to convert a small continuous power source into a short surge of energy or vice versa.
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