Genetic testing is a technology that tests DNA through blood, other body fluids, or cells.
Genetic testing can determine individuality, or it can determine population (ancestry) characteristics by comparing populations, or finding a needle in a haystack by narrowing down the area and then testing for individuality.
Genetic testing is through the blood, other body fluids or cells to detect the DNA technology, is to take the test person shed oral mucosa cells or other tissue cells, amplification of its genetic information, through specific equipment to the test person cells in the DNA molecular information for the test, to predict the risk of disease in the body, analyze the various genes contained in it, so people can understand their own genetic information, and thus improve their own genetic information. The genetic information can be analyzed so that people can understand their own genetic information and avoid or delay the occurrence of diseases by improving their living environment and habits.
Genetic testing can be used to diagnose disease and to predict disease risk. Disease diagnosis is the use of genetic testing technology to detect mutated genes that cause hereditary diseases. The most widely used genetic testing is the detection of hereditary diseases in newborns, the diagnosis of hereditary diseases and the auxiliary diagnosis of certain common diseases. Currently there are more than 1,000 hereditary diseases that can be diagnosed by genetic testing technology.
Predictive genetic testing is the use of genetic testing technology to detect the risk of disease occurrence before the disease occurs, early prevention or effective intervention measures. Currently there are more than 20 diseases that can be predicted by genetic testing.
For the test, the genes of the subject are first extracted from the blood or other cells. Then this part of the gene is copied many times using primers and PCR techniques that can identify genes that may have mutations, and mutant gene probe methods with special markers, enzymatic methods, and gene sequence detection methods are used to determine whether there is a mutation in this part of the gene or whether there is a sensitive genotype.
Genetic testing: A technology that detects DNA molecules in the cells of the tested person through methods such as gene chips and analyzes the disease-causing genes and disease susceptibility genes contained in the tested person.
At present, the main methods of genetic testing are: fluorescence quantitative PCR, gene chip, liquid biochip and microfluidic technology.
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