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Table 5 Variance of true gene expression (Var Z) and measurement error (Var e) for each of the different amplified protocols and the unamplified arrays.

From: Optimization and evaluation of T7 based RNA linear amplification protocols for cDNA microarray analysis

 

Affymetrix

Affymetrix w/o ligase

Jeffrey lab with G-50 cleanup

Jeffrey lab

Poly(A)+ RNA

Var Z

0.661

0.658

0.623

0.661

0.726

Var e

0.102

0.066

0.078

0.055

0.059