Genetic testing can be used to diagnose diseases and predict the risk of diseases. Disease diagnosis is the use of gene detection technology to detect mutant genes that cause hereditary diseases. At present, the most widely used genetic testing is the detection of neonatal hereditary diseases, the diagnosis of hereditary diseases and the auxiliary diagnosis of some common diseases. At present, there are more than 1000 kinds of genetic diseases that can be diagnosed by gene detection technology.
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However, since there are about 30,000 genes in the human body, the detection should be purposeful, targeting a certain gene.