I.DNA Microarray Usually made commercially. The Plate Made of glass,silicon,or nylon. Each plate contains thousands of spots,and each spot contains a probe for a different gene. A probe can be a cDNA fragment or a synthetic oligonucleotide,such as BAC (bacterial artificial chromosome set). Probes can either be attached by robotic means, where a needle applies the cDNA to the plate, or by a method similar to making silicon chips ■感E for computers.The latter is called a Gene Chip. GeneChip affymetrix Gonome Vede thma的SN把Nay年0 Biology for a better world 8P 利材2过设 Lg期40D E Dwe 1o1e The Plate • Usually made commercially. • Made of glass, silicon, or nylon. • Each plate contains thousands of spots, and each spot contains a probe for a different gene. • A probe can be a cDNA fragment or a synthetic oligonucleotide, such as BAC (bacterial artificial chromosome set). • Probes can either be attached by robotic means, • where a needle applies the cDNA to the plate, • or by a method similar to making silicon chips • for computers. The latter is called a Gene Chip. I. DNA Microarray