Hybridization Quality
| Wafer[i] | Indiv. chips[i] | |
| % Present[ii] | 33 ± 3 | 37 ± 1 |
| Avg. signal intensity[iii] [iv] | 38 ± 8 | 30 ± 3 |
| Background[iii] | 38 ± 7 | 24 ± 3 |
[i] Numbers are the mean ± standard deviation for 47 arrays on the wafer or four individual chips.
[ii] The percentage of genes queried on the arrays scored as present.
[iii] Arbitrary fluorescence units.
[iv] Average signal intensity for all genes queried on the arrays (see Methods).