SIAHST_120621_818
Existing comment:
DNA model template
1953
from Francis Crick and James Watson's original model

Francis Crick and James Watson's discovery of the double-helix structure of DNA, the molecule responsible for our genetic inheritance, was one of the great scientific breakthroughs of the 20th century. It opened up the world of genetic testing, crime scene forensics, and even genetic engineering.
Proposed user comment: