Genes are segments of DNA that have hereditary effects, and there are multiple genes on a single DNA. Genes are located on DNA and are effective hereditary DNA segments, genes are the basic hereditary units controlling biological traits, genes support the basic structure and performance of organisms, all life phenomena such as birth, growth, disease, old age and death of organisms are related to genes, and likewise it is an intrinsic factor determining the health of life, so genes have dual attributes, i.e., materiality and informativeness. DNA exists on chromosomes (chromosomes are the genetic material of human beings), which are composed of bases, deoxyribose and phosphate. A DNA has multiple genes on it. DNA carries the genetic information necessary for the synthesis of RNA and proteins, and the development and normal functioning of human organisms cannot be achieved without this biomolecule. If you find any gene mutation or abnormalities in DNA test, please consult the hospital in time to avoid any delay in your condition.