Scientific, surveying, weighing, measuring and checking apparatus and instruments, namely, fluorometers, spectrophotometers, real-time polymerase chain reaction (PCR) devices for gene expression and genotyping, DNA analyzers, DNA fragmentation and capture devices, thermal cycler, and thermal blocks for incubations all to determine the structure, composition or sequence of DNA on multiple genes or on the whole genomic coding region or the whole genome, to determine structure, composition or se...