<prompt> Which of following techniques tests is not used for detection of specific aneuploidy -FISHRT-PCRQF-PCRMicroarray  <response>: FISH Fluorescent in situ hybridisation and PCR polymerase chain reaction like RT-PCR and QF PCR tests can detect specific aneuploidy.Whereas, microarray-based CGH comparative genomic hybridization test can be used as high-resolution whole-genome scan for the detection or screening of unknown non-specific abnormalities, mutation or genomic imbalance including deletions, duplication and aneuploidies. Microarray-based CGH cannot detect balanced translocations or inversions.So FISH and PCR can detect specific known chromosomal abnormalities whereas microarray-based CGH is better suited for screening unknown non-specific chromosomal abnormalities. 