Single-stranded DNA repair is a critical process whose mechanism has never been determined. Now, researchers have figured out how this process works, focusing on an enzyme associated with the ...

The cowcatcher is a unique device located at the front end of rail vehicles. It is generally installed at the bottom frame of the head car and can remove obstacles by colliding with foreign objects on ...

- an inclined metal frame at the front of a locomotive to clear the track ...

Every time one of your cells divides, it exposes its most essential component to great danger: its genome, the sum total of all its genetic information, embodied in the double-stranded helix of DNA.