Genetics and Evolution — Tech Evolutions

Entry	Year	Description	Impact
1	1900	Rediscovery of Mendel's Laws by de Vries, Correns, and Tschermak, marking the formal birth of genetics as a scientific discipline.	Shifted biological understanding from blending inheritance to particulate inheritance, providing the mechanism for heredity that Darwin's theory lacked.
2	1953	Watson and Crick's elucidation of the DNA double helix structure.	Revolutionized biology by revealing the physical basis of heredity, immediately suggesting mechanisms for replication, mutation, and gene function. Ushered in the era of molecular biology.
3	1930s-1940s	The 'Modern Evolutionary Synthesis' (Neo-Darwinism), integrating Mendelian genetics with Darwinian natural selection.	Provided a comprehensive and robust framework for evolution, explaining how genetic variation arises and how natural selection acts upon it to drive evolutionary change. Unified disparate biological fields.
4	2012	Discovery and widespread adoption of CRISPR-Cas9 gene editing technology.	Democratized gene editing, making it far more precise, efficient, and accessible than previous methods. Opened unprecedented avenues for treating genetic diseases, developing new crops, and fundamental biological research, while also raising new ethical dilemmas.