Deoxyribonucleic acid is an organic compound with a complex molecular structure and is found in the nucleus of cells as a component of chromosomes. The function is to store genetic information. Deoxyribonucleic acid consists of nucleotides. Nowadays, there are two main types of DNA tests, one is used in preconception centers, which includes checking routine chromosome counts and karyotyping. The other category is for genetic risk prediction, including hypertension, hyperlipidemia, acute heart attack, and coronary atherosclerotic heart disease.