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Gene Expression Assay and Data Analysis

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How long can I store a eukaryotic hybridization cocktail after the first hybridization?

Assuming that there is no RNase contamination, a cRNA hybridization cocktail can be stored for at least one year at -80°C with no loss of sensitivity. The fact that the cRNA has been fragmented prior to the first array hybridization, reduces the risk of additional subsequent degradation.