Maize serves as a vital model species for advancing our understanding of plant biology, yet many mysteries remain about the intricate processes governing how DNA works and organizes itself in the ...

All the essential ingredients to make the DNA and RNA underpinning life on Earth have been discovered in samples collected ...

Biological matter left behind in the water allows us to follow these animals without ever setting eyes on them.

Entering a cell and watching its entire inner machinery at work, how DNA is copied, how proteins are assembled, or how it splits in two, has been, for decades, an impossible dream. Now, scientists at ...

The Editorial Board of the Proceedings of the National Academy of Sciences (PNAS) has selected six papers published by PNAS in 2025 to receive the Cozzarelli Prize, an award that recognizes ...

The origin of the nucleus remains hotly debated among scientists, but new imaging and genomic data are shedding light on this billion-year-old mystery.

Smithsonian researcher Sarah Johnson studies bison specimens to understand how the species’s genetic diversity changed after its decline ...

How much of our genome really matters? Some argue that because most of our DNA is active, it must be doing something important. Others say even random DNA would be highly active. This has now been put ...

Researchers have discovered how cells activate a last-resort DNA repair system when severe damage strikes. When genetic tangles overwhelm normal repair pathways, cells flip on a fast but error-prone ...

The precise biological process behind the increased risk of melanoma previously remained unclear, and the study found the use of indoor tanning beds led to a nearly threefold increase in melanoma risk ...