Multiplexed nucleic acid analysis with high specificity

A diagnosis kit and a method contain the object for amplification selected [that multiplex PCR and extension should be made possible by high singularity], and the primer for extension. Suitably, the primer for extension contains a different tag from the target nucleic acid arrangement which should be hybridized to the probe for capture on a biochip, and should be analyzed. Furthermore, a suitable kit contains a biochip and various directions for use.