Animated Dictionnary Definition

Bacterium

Microorganism, prokaryote, unicellular.

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The Structure of a Transmembrane Channel: A research report of SCIENCE magazine ("The structure of the potassium channel: Molecular basis of K+ conduction and selectivity," by Doyle et al, SCIENCE, 280: 69-77, 1998) has shown the potassium channel in great detail. These researchers, working in New York City, solved the structure of the potassium channel from a bacterium using X-ray crystallography.
Transformation of Competent cells: Transformation is the process of introducing foreign DNA (e.g plasmids, BAC) into a bacterium. Bacterial cells into which foreign DNA can be transformed are called competent.

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