Test tubes; Precision measuring apparatus, namely, Polymerase chain reaction (PCR) apparatus, namely, a spectrophotometer for measuring the DNA and RNA level of the susceptible body fluids; Apparatus for scientific research in laboratories, namely, apparatus for extracting the DNA and RNA from the susceptible body fluids; Apparatus for use in laboratory analysis, namely, apparatus for extracting the DNA and RNA from the susceptible body fluids; Bioreactors for laboratory use; Cartridges for ...