The most important photograph in biology was taken by a scientist who never knew what was done with it — and the argument about what she was owed has never ended.
Ten items. Work through the four activities — say your answer out loud before you reveal it.
Three words: posthumous · rivalry · to decode. Say the right one, then reveal.
Read each part. After it, there's a quick check (answer from memory first), then one question to discuss.
By 1951, biology's biggest question had narrowed to one molecule. DNA was known to carry inheritance; nobody knew its structure, and structure, everyone sensed, would explain everything — how life copies itself. In Britain the problem belonged, by gentleman's agreement, to King's College London, where Maurice Wilkins had been probing DNA fibres with X-rays. That year the lab recruited Rosalind Franklin: thirty-one, Cambridge-trained, and just back from Paris, where she had become one of the world's finest X-ray crystallographers working on the structure of coal.
The collaboration was poisoned before it began. Through a failure of management that historians still wince at, Franklin arrived understanding that DNA was to be her project, with Wilkins away; Wilkins returned believing this precise, formidable newcomer had been hired as his assistant. Neither was ever properly corrected. Their relationship froze into cold formality within months — two scientists on the same corridor, working on the same molecule, barely speaking. Meanwhile in Cambridge, two outsiders with no DNA data of their own — the young American James Watson and the loudly brilliant Francis Crick — decided to skip the measuring altogether and guess the structure by building models, the approach the American chemist Linus Pauling was using to terrifying effect an ocean away.
Franklin, methodical where the model-builders were theatrical, made the field's decisive technical advance: she discovered that DNA took two forms, wet and dry, whose overlapping X-ray patterns had confused everyone, and she worked out how to photograph each form pure. In May 1952, she and her doctoral student Raymond Gosling exposed a fibre of the wet "B form" to X-rays for over sixty hours. The result — labelled simply Photograph 51 — was the clearest image of DNA ever taken: a stark X of black bands that shouted helix to any trained eye, with dimensions readable from the spacing. Franklin, deep in the mathematics of the dry form and rightly suspicious of pretty conclusions, set it in a drawer and continued her systematic analysis.
1. What misunderstanding poisoned King's College, and how did it happen?
2. What was Photograph 51, and what did Franklin do with it?
1. Franklin was told DNA would be her project; Wilkins believed she had been hired as his assistant. Management never corrected either, and the two froze into barely speaking — rivals inside one lab.
2. The clearest X-ray image of DNA ever taken (with Gosling, May 1952) — the B form's X-pattern, the signature of a helix with readable dimensions. Franklin filed it and continued her systematic mathematical analysis of the other form.
In January 1953 the story reached its famous hinge. Watson visited King's, argued with Franklin, and on his way out was taken aside by Wilkins — who, wanting sympathy or alliance, pulled out Photograph 51 and showed it to him. Franklin was not asked; Franklin was not told. Watson later wrote that his mouth fell open and his pulse began to race: the helix was obvious at a glance, and the picture's parameters travelled back to Cambridge in his memory. Weeks later, a second channel opened: Franklin's precise measurements, written into an internal report for a funding committee, reached Crick through his supervisor Max Perutz. Nothing was stolen in the criminal sense — Wilkins had come to possess the photograph legitimately through Gosling, the report was not marked confidential — and generations have argued about those two sentences ever since.
What is not in dispute is what the data did. Crick, a trained crystallographer unlike Watson, could read in Franklin's numbers a fact she had herself established: the molecule's symmetry meant its two strands ran in opposite directions. With her parameters constraining the guesswork, the Cambridge pair built one final model — and when Watson, playing with cardboard cut-outs of the four bases, saw that the pairs A–T and G–C had identical shapes, the structure clicked shut. The double helix explained inheritance in a single image: unzip the strands, and each is the template for the other. Franklin, shown the model in March, accepted it quickly and without apparent bitterness — her own notebooks reveal she had been closing in on it herself, two steps away.
In April 1953, Nature published the discovery as three papers: Watson and Crick's model first, Wilkins's data second, Franklin and Gosling's photograph and analysis third — arranged so that her evidence read as confirmation of their idea, rather than its foundation. The model paper acknowledged, in a sentence of famous understatement, that the authors had been "stimulated by a knowledge of the general nature" of the King's workers' unpublished results. Franklin never learned how directly her photograph and her report had steered the model. She had, by then, already arranged to leave.
1. By what two channels did Franklin's data reach Cambridge, and what is disputed about each?
2. What did her data contribute to the model, specifically?
1. Wilkins showed Watson Photograph 51 without her knowledge; her measurements reached Crick via an internal funding report passed on by Perutz. Neither act was theft in a formal sense — the photograph was legitimately held, the report unmarked — and whether they were wrong is the sixty-year argument.
2. The helix and its dimensions from the photograph; and from her measurements, the symmetry showing the two strands run in opposite directions — the constraints that made the final model buildable.
What the legend forgets is that Franklin's story did not end at King's — it got better. She moved to Birkbeck College, into a happier lab, and did what many consider her finest work: unravelling the structure of the tobacco mosaic virus, foundational to structural virology, and beginning on polio. She became friendly with Crick and his wife, staying with them during her illness — whatever she suspected about 1953, she did not live as a woman betrayed. In 1956 she was diagnosed with ovarian cancer; she worked between operations, publishing to the end, and died in April 1958, aged thirty-seven. Four years later, the Nobel Prize for DNA went to Watson, Crick and Wilkins. The prize is never awarded posthumously and is limited to three names; whether she would — or should — have been included had she lived is a question with no answer, which has never stopped anyone.
It was a book that turned a science story into a moral one. Watson's memoir The Double Helix (1968) was a sensation — candid, gossipy, gripping — and its treatment of "Rosy" (a nickname she never used) was so belittling, so fixated on her appearance and her supposed bad temper, that it accomplished the opposite of its tone: readers began asking who this woman actually was. Crick and Wilkins objected to the manuscript; Watson added an epilogue conceding, too late and in the past tense, that he had realised "years too late" the struggles a woman in her position had faced and that her work had been first-rate. Anne Sayre's answering biography, and later Brenda Maddox's, rebuilt the record. The patronising portrait became the engine of the vindication.
Since then, the pendulum has kept moving — and the newest scholarship complicates the martyrdom too. Historians examining her notebooks and correspondence argue that Franklin was less a victim robbed in the dark than an equal contributor whose work was known and used with a casualness that reflected the era's norms — including its norms about women — and that she likely understood more about how her data had travelled than the legend allows. She has been compensated with the fame of an icon: institutes, universities, a Mars rover carry her name, arguably outshining the three laureates. The last word belongs to the argument itself, which is why the story is taught: every era retells it as a mirror — first as a tale of genius, then of theft, then of sexism, now of credit's genuine complexity — and every retelling says at least as much about the tellers as about four scientists and a photograph.
1. What did Franklin do after King's, and what happened in 1958 and 1962?
2. How did Watson's book backfire, and what does recent scholarship add?
1. At Birkbeck she produced landmark virus-structure work (tobacco mosaic, then polio) and remained friendly with Crick. She died of ovarian cancer in 1958 at 37; the 1962 Nobel went to Watson, Crick and Wilkins — the prize being neither posthumous nor open to a fourth name.
2. Its belittling portrait of "Rosy" provoked the biographies that restored her record — the insult built the icon. Recent scholarship argues she was an equal contributor, aware of more than the legend claims, used with the era's casual norms rather than robbed in secret — a harder, truer story than either myth.
This story survives in memoirs, letters and interviews — everything in it is someone reporting what someone said. Master the machinery and you can retell any dispute accurately.
Turn each original into reported speech. Write the full sentence.
1. Watson (in his memoir): "My mouth fell open and my pulse began to race." → In his memoir, Watson wrote that
2. Wilkins to Watson: "Look at this photograph." → Wilkins invited Watson
3. The management to Franklin (in effect): "DNA will be your project." → She had been told that
1. …his mouth had fallen open and his pulse had begun to race.
2. …to look at the photograph.
3. …DNA would be her project.
Convert as indicated. Write the full sentence.
1. Historians: "Did Franklin know how her data had travelled?" → Historians have long asked
2. Critics to Watson: "Why did you describe her clothes instead of her science?" → Critics demanded to know
3. Choose the verb that fits the record: Watson's epilogue ___ that her work had been first-rate. (admitted / denied / insisted — and justify your choice aloud)
1. …whether Franklin knew (or: had known) how her data had travelled.
2. …why he had described her clothes instead of her science.
3. acknowledged / admitted — it was a concession made under criticism, so a concession verb; "insisted" would misreport the record.
Fill each gap with the reported form, then read it aloud in a documentary narrator's voice.
Franklin arrived believing the DNA work (be) hers; Wilkins, colleagues later recalled, (assume) she had been hired to assist him. In January 1953, Watson would write, Wilkins (show) him a photograph that (change) everything. Watson admitted that his pulse (race) at the sight of it. The Nature paper acknowledged only that the authors (be stimulated) by a general knowledge of unpublished results. Decades later, Watson conceded that he (realise) too late what Franklin (face) as a woman in science — and historians still ask whether she (understand) all along.
was · had assumed · had shown / showed · would change / changed · had raced · had been stimulated · had realised · had faced · had understood / understood
Almost every verb steps back — the whole story reaches us second-hand, and the grammar wears that fact honestly.
Take the machinery into the Speak tab — Task B is a hearing conducted entirely in "he said, she said".
A note on the record: this story is unusual in that its primary sources are memoirs and letters written by the participants — partial by nature. Where the accounts conflict, this lesson has said so; where legend has outrun evidence, the newest scholarship is flagged.
All of it out loud, against the clock. Everything in this story is second-hand — so report it honestly: the right tense shift, and above all the right reporting verb.
Tell it with the care it demands: the biggest question in biology → the poisoned introduction at King's → Photograph 51 in the drawer → what Wilkins showed and what the report carried → the model clicking shut in Cambridge → three papers in a fixed order → Birkbeck and the viruses → 1958, 1962 → the memoir that backfired → the argument that never ends.
Use reported speech at least four times with four different reporting verbs, and five key words (crystallography, helix, without her knowledge, rivalry, decode, posthumous, patronising, injustice, take credit, share).
A panel is judging, decades later, whether wrong was done. Give each party ninety seconds of reported testimony — Wilkins said that…, Watson claimed that…, Franklin's letters suggest that… — for Wilkins (the photograph was legitimately his to show), Watson (nothing was stolen and the model was theirs), and Franklin (as her notebooks and friends speak for her). Then deliver the panel's one-paragraph finding.
A piece of work is about to be published or presented, and the names are being decided. Chair the meeting: set the rule for who goes first, who is included, and what "contribution" means — then apply it to a hard case where the data-gatherer and the idea-haver disagree.
Prefer a ready-made scenario? Take one of these: