Some Affy numbers
features typically 20 m; can be as small as 2-5 m
300K-1M features on a 1.3 cm chip
$300K for a mask
human, mouse, rat; yeast, C. elegans, bacterial
strains; HIV; SNP arrays; custom arrays
quantitative accuracy-- ±2x
discrimination of related genes--80 (90) %
dynamic range 500 (10,000)
typically detect 30-50% of all yeast genes--down to a
frequency of 1/300K mRNA