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The Race to the Double Helix — Watson, Crick, Franklin & the Real Story of DNA (EP. 19)

The Race to the Double Helix — Watson, Crick, Franklin & the Real Story of DNA (EP. 19)

From First Principles vor 11 Monaten

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1:34:13

Hosted by Lester Nare and Krishna Choudhary, this single-story deep
dive tells the full story of how humanity uncovered the structure
of DNA — and the human tensions that shaped it. From Mendel’s
pea-plant mathematics to Rosalind Franklin’s groundbreaking x-ray
crystallography, from Cavendish–King’s College rivalries to the
famous Photo 51, this episode follows the scientific and ethical
arc behind one of the most important discoveries in modern biology.
Summary Before DNA — Mendel’s inheritance laws, Miescher’s nuclein,
Levene’s early models, and why scientists initially believed
proteins carried heredity. The turning point — Griffith’s
transformation experiment and the Avery–MacLeod–McCarty proof that
DNA is the genetic material. The physics connection — Schrödinger’s
What Is Life? and the idea of an “aperiodic crystal” inspiring
Watson, Crick, and a generation of physicists to enter biology. Two
labs, one race — Cavendish vs. King’s College, Wilkins vs.
Franklin, and the clash of personalities, methods, and
interpretations. Photo 51 — Franklin and Gosling’s pivotal
diffraction image revealing the helical structure of DNA. The model
— base pairing, antiparallel strands, and why the double helix
immediately explained replication. Recognition & legacy — the
1953 Nature papers, the 1962 Nobel Prize, Franklin’s omission, and
Watson’s later controversies reshaping his legacy. Show Notes
Mendel (1866) — Pea Plant Genetics Griffith (1928) — Transformation
Avery–MacLeod–McCarty (1944) Schrödinger — What Is Life? Franklin’s
Photo 51 Watson & Crick (1953)