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The Eighth Day of Creation

The Eighth Day of Creation

Horace Freeland Judson
1969
T2 686 pages · about 11h 26m to read OL2973346Wgoodreads

The definitive history of molecular biology's founding discoveries

Summary

Judson wrote the definitive history of molecular biology, based on extensive interviews with the participants conducted while most were still alive, covering the period from the 1930s through the early 1970s.

The narrative runs through three problems. The structure of DNA, covering Avery's demonstration that DNA carries heredity, the work at King's College by Rosalind Franklin and Maurice Wilkins, Pauling's incorrect model, and the Watson and Crick solution. The genetic code, covering how the sequence of bases specifies proteins, the work of Crick, Brenner, Nirenberg and others, and the experiments that cracked it. And the regulation of gene expression, covering Jacob and Monod's operon model, which explained how a cell with identical DNA in every cell produces different behaviour in different tissues.

Judson's method is to reconstruct the reasoning as the participants experienced it, including the wrong turns, the misinterpreted data and the disputes over priority, which makes it a study of how scientific discovery actually proceeds rather than a chronology of results. His treatment of Rosalind Franklin's contribution and of how her data reached Watson and Crick is careful and predates most of the subsequent argument.

The book is long and demanding, and the science requires attention. It is regarded as among the best histories of science written and its interview material is irreplaceable. It ends in the early 1970s and covers nothing of recombinant DNA, sequencing or the subsequent biotechnology industry.

Key takeaways 7

  1. Molecular biology solved three connected problems in sequence: what carries heredity, how the sequence specifies proteins, and how gene expression is regulated.
  2. Scientific discovery proceeds through wrong turns and misinterpreted data, and reconstructing the reasoning as participants experienced it shows a different process than the published results suggest.
  3. Rosalind Franklin's crystallographic data was essential to the DNA structure and reached Watson and Crick through channels she had not authorised.
  4. Pauling, the most accomplished structural chemist of the period, produced an incorrect DNA model, which shows expertise does not guarantee the right answer.
  5. The operon model explained how cells with identical DNA produce different behaviour in different tissues, which was the regulation problem the structure did not solve.
  6. Priority disputes and competition for credit shaped what was published and when throughout the period.
  7. Interviews conducted while participants were alive produced material about the reasoning that no documentary record contains.

Who should read it

Readers who want the definitive account of how molecular biology was actually done, including the errors and disputes the published record omits.

Where it sits in the reference 2

Industries
Mental models

Who recommended it 1 · 1 direct

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