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DNA research. Technician removing a DNA sample from a test tube using a needle. The DNA (deoxyribonucleic acid) is seen as a pink mass in the test tube. DNA is present in every living thing, and is responsible for carrying genetic information from parents to their offspring. DNA research is important in the study and treatment of hereditary characteristics and genetic diseases, for example through genetic engineering. As no two individuals have the same DNA code, DNA testing is also used in forensic science and genealogy.
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