Genetics
Barbara McClintock
She discovered mobile genetic elements in maize.
The problem
A question worth answering.
Genes were often imagined as fixed at one chromosomal location.
What they did
She discovered mobile genetic elements in maize.
What changed
Her work changed how genetic change is understood.
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.