University department
Appears in 1 story
Conducted the research
For decades, biologists puzzled over a chemical swap at the heart of heredity. When life moved from RNA to DNA, the base uracil was replaced by thymineโeven though thymine absorbs more ultraviolet damage, and early Earth had no ozone layer to block the sun's radiation.
Updated 1 hour ago
No stories match your search
Try a different keyword
How would you like to describe your experience with the app today?