401. General Nature of the Genetic Code

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402. General Model for the Chromosomes of Higher Organisms

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403. Francis Crick's remarks at a conference held at Stanford University School of Medicine

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404. Francis Crick speaking with Seymour Benzer at the Symposium on Nucleic Acids, Hyderabad, India

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405. Francis Crick speaking with Obaid Siddiqi and Alan Garen at the Symposium on Nucleic Acids, Hyderabad, India

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406. Francis Crick speaking with Obaid Siddiqi and Alan Garen at the Symposium on Nucleic Acids, Hyderabad, India

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407. Francis Crick preparing to give a lecture at the Weizmann Institute, Rehovot, Israel

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408. Francis Crick lecturing at Cambridge University

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409. Francis Crick at a scientific symposium at the Stanford University School of Medicine

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410. Francis Crick at a dinner at the Nobel Prize Winners Conference in Lindau, Germany

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411. Francis Crick and other scientists at a meeting of the European Molecular Biology Organization (EMBO) held at Konstanz, Germany

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412. Francis Crick and Arthur Kornberg seated in the audience at a scientific symposium at the Stanford University School of Medicine

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413. Fragment of speaking notes on DNA replication

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414. Fragment of notes on a double helix model for DNA

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415. Evidence for the Pauling-Corey alpha-Helix in Synthetic Polypeptides [Editorial letter]

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416. Evarts A. Graham Lecture, Washington University, St. Louis, Missouri

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417. Drawing of the double helix

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418. Directed Panspermia

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419. Directed Panspermia

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420. Diffusion in Embryogenesis

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