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What is the first step in preparation of a tissue or organ sample?
Fixation
____ usually by a chemical or mixture of chemicals permanently preserves the tissue structure for subsequent treatments.
Fixation
____ is used for terminate cell metabolism; prevent enzymatic degradation of cells and tissues by autolysis (self-digestion); kill pathogenic microorganisms such as bacteria, fungi, and viruses and harden the tissue as a result of either cross-linking or denaturing protein molecules
Fixation
what is the most commonly used fixative for light microscopy
formalin