Subcategories - Biology, Biologists

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  1. Hermann Joseph Muller
  2. Hermann Staudinger
  3. Hermann von Helmholtz
  4. Hodgkin Solves the Structure of Penicillin
  5. Hopkins Discovers Tryptophan, an Essential Amino Acid
  6. Hopkins Suggests That Food Contains Vitamins Essential to Life
  7. Horsfall Announces That Cancer Results from Alterations in the DNA of Cells
  8. Hounsfield Introduces a CAT Scanner That Can See Clearly into the Body
  9. Human Genome Project Begins
  10. A Human Growth Hormone Gene Transferred to a Mouse Creates Giant Mice
  11. Influenza Epidemic Kills Millions Worldwide
  12. Influenza Epidemic Strikes
  13. Isaacs and Lindenmann Discover Interferons
  14. Ivan Petrovich Pavlov
  15. Ivanov Develops Artificial Insemination
  16. Jacobsen Introduces a Drug for the Treatment of Alcoholism
  17. Jacques Cousteau
  18. James D. Watson
  19. Jean Piaget
  20. Jeffreys Discovers the Technique of Genetic Fingerprinting
  21. Johannsen Coins the Terms “Gene,” “Genotype,” and “Phenotype”
  22. John J. R. Macleod
  23. John James Audubon
  24. Josef Breuer
  25. Kahn Develops a Modified Syphilis Test and the Universal Serologic Test
  26. Karl Ernst von Baer
  27. Karl von Frisch
  28. Koch Isolates Microorganisms That Cause Tuberculosis and Cholera
  29. Konrad Lorenz
  30. Krebs Describes the Citric Acid Cycle
  31. Landsteiner Discovers Human Blood Groups
  32. Landsteiner Identifies Rhesus Factor
  33. Lasers Are Used in Eye Surgery for the First Time
  34. The Last Natural Case of Smallpox Occurs
  35. Lazzaro Spallanzani
  36. Li Isolates the Human Growth Hormone
  37. Linus Pauling
  38. Lipmann Discovers Acetyl Coenzyme A
  39. Lister Promotes Antiseptic Surgery
  40. Louis Pasteur
  41. Luigi Galvani
  42. Marcello Malpighi
  43. Maurice H. F. Wilkins
  44. McClung Plays a Role in the Discovery of the Sex Chromosome
  45. McCollum Names Vitamin D and Pioneers Its Use Against Rickets
  46. McLean Discovers the Natural Anticoagulant Heparin
  47. Medical Researchers Develop and Test Promising Drugs for the Treatment of AIDS Patients
  48. Miller Reports the Synthesis of Amino Acids
  49. Model of DNA Molecular Structure Is Developed
  50. Moniz Develops Prefrontal Lobotomy
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