NASA astronaut Nick Hague runs an analysis with the miniPCR hardware for Genes in Space-6 during Expedition 59. This experiment explored how space radiation damages DNA and how cells repair that ...

When it comes to helping NASA scientists better understand the effects of space travel on the human body, fruit flies are the heavyweights of experiments in weightlessness. Because humans and fruit ...

An essential cellular enzyme successfully transcribed synthetic DNA letters, bringing expanded genetic codes closer to biological use.

Researchers have discovered how the protein XPD detects severe DNA damage and controls its repair. The XPD protein is a central component of our body's own "DNA repair team," known as nucleotide ...

A molecular illustration of the crowded interior and cell envelope of Escherichia coli. (David S. Goodsell, The Scripps Research Institute) To replicate information, life usually has fairly ...