Every time a cell divides, it must copy its entire genome so that each daughter cell inherits a complete set of DNA. During that process, enzymes known as polymerases race along the DNA to copy its ...

DNA, which has a double-helix structure, can have many genetic mutations and variations. Credit: NIH When cells in the human body divide, they must first make accurate copies of their DNA. The DNA ...

Researchers demonstrated how Mycobacterium tuberculosis modifies its DNA and regulates both replication and gene activity through a reversible process known as ADP-ribosylation. This is the first time ...

The circadian rhythm is the body's clock, and it influences physiology at the cellular level; it can help animals, including humans, know when it's time to eat, wake up or go to sleep. Recent work has ...

University of Iowa-led study has revealed the unexpected structure adopted by the DNA repair protein RAD52 as it binds and protects replicating DNA in dividing cells. A University of Iowa-led study ...