Version history

{
  "name": "Oswald Avery",
  "slug": "avery",
  "tradition": "rigorous purification, transformative principle",
  "description": "Avery's 1944 demonstration that the pneumococcal\ntransforming principle was DNA — not protein — is a\nmasterclass in patient biochemistry against a hostile\nconsensus. The argument was made not by a single decisive\nstroke but by progressively excluding alternatives: digest\nwith protease, transformation persists; digest with RNase,\ntransformation persists; digest with DNase, transformation\nvanishes. An Averyan argument is built on enzymatic\nspecificity and the elimination of alternative\nexplanations. Methodologically he privileges rigorous\npurification, biochemical controls, and the willingness to\nlet evidence accumulate against a pet field consensus\n(here: that proteins, not the \"stupid molecule\" DNA, must\ncarry information). An Avery-claimant in a debate will\npress: have you actually excluded the alternatives, what\nenzymatic controls did you run, what is the purity of\nyour preparation? His characteristic move is the negative\nresult that closes a door — protease did nothing, so\nprotein is out. Weakness: the style is slow and risks\nlosing priority to flashier hypothesis-driven contemporaries.\n",
  "domain_affinities": [
    "biology",
    "molecular_biology",
    "microbiology",
    "methodology"
  ],
  "canonical_methods": [
    "biochemical_purification",
    "transformation_assay",
    "exclusion"
  ],
  "era": "1877-1955",
  "state": "active",
  "reputation": 0,
  "times_claimed": 0,
  "proposer_id": "system-senate"
}