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Gene List – Quality Control
•Reasonable number of genes ranging from hundreds to thousands (e.g., 100–2,000 genes), not extremely low or high.
•Most of the genes significantly pass the statistical threshold for selection (e.g., selecting genes by comparing gene expression between control and experimental cells with t-test statistics: fold changes ≥ 2 and P-values ≤0.05).
• A ‘good’ gene list should consistently contain more enriched biology than that of a random list in the same size range during analysis in DAVID.