Developmental biology
John Gurdon
His nuclear-transfer experiments showed mature cells could be reprogrammed.
The problem
A question worth answering.
Whether specialized cells retain the full genetic program was uncertain.
What they did
His nuclear-transfer experiments showed mature cells could be reprogrammed.
What changed
The work laid groundwork for stem-cell biology.
Where you meet their legacy
In the knowledge, systems and people who carry the work forward today.
Evidence and further reading
This story does not assign sole credit for a collective achievement.