St. Jude researchers show the DNA repair enzyme PARP1 evicts two histones near damage sites, forming hexasomes that recruit ...
Most biochemistry labs that study DNA isolate it within a water-based solution that allows scientists to manipulate DNA without interacting with other molecules. They also tend to use heat to separate ...
The two strands of DNA, although chemically equivalent, are replicated and repaired asymmetrically. Insights into the persistence of DNA damage show how strand-specific interactions shape the ...
Inside our bodies, there is a "molecular clock" that quietly counts how many times a cell can divide. It is the "telomere," a ...
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 ...
Rosalind Franklin had seen the helix: A forgotten photograph rewrites the history of DNA’s structure
Notes by the scientist pointing to a helical structure once again challenge the distorted account of her role in the discovery ...
In honour of National DNA day and the 70th anniversary of the discovery of the structure of DNA, biology teachers and students at Pennsbury High School in Fairless Hills, Pennsylvania, USA, wanted to ...
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Scientists simulated microgravity in human cells and found something unexpected about DNA
Every cell in your body has spent its entire existence under gravity’s pull. Inside each of them, roughly two meters of DNA must fit inside a nucleus only about 10 micrometers across. Those two meters ...
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