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DNA 'DNA is a nucleic acid that carries the genetic information in the cell and is capable of self-replication and synthesis of RNA. DNA consists of two long chains of nucleotides twisted into a double helix and joined by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine. The sequence of nucleotides determines individual hereditary characteristics.'(1) Over the generations of man science has been used as the utensil to both explain and improve the existence of man. Throughout my essay I will be talking about the impact DNA has had on society. The discovery of DNA, its structure, and function was probably the most significant biological discovery of the 20th century. It has had a tremendous impact on science and medicine. From identifying genes that lead to the development of diseases, to producing pharmaceuticals to treat them, identifying and analyzing genes has led to extraordinary breakthroughs that have changed...

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