In 1953, James Watson, Francis Crick, Rosalind Franklin, and Maurice Wilkins determined the double-helix structure of DNA, unlocking the molecular basis of heredity. This groundbreaking discovery revolutionized the fields of genetics and molecular biology, providing insights into the mechanisms of life. Understanding DNA's structure has had profound implications for medicine, biotechnology, and our understanding of evolution.

DNA’s discovery revolutionized the metaphor of the 'code' in literature, influencing Postmodern and Cyberpunk writing that explores identity as programmable information, and raising ethical questions about cloning and manipulation in contemporary speculative fiction and poetry.