Affymetrix vs. glass slide based arrays • • • • Affymetrix Short oligonucleotides Many oligos per gene Single sample hybridized to chip • Fixed platform. • Not universally available for each species. • EXPENSIVE! • Glass.
Transcript Affymetrix vs. glass slide based arrays • • • • Affymetrix Short oligonucleotides Many oligos per gene Single sample hybridized to chip • Fixed platform. • Not universally available for each species. • EXPENSIVE! • Glass.