The double-strand-break repair model (A) posits that during meiotic prophase I, crossovers (COs) and noncrossovers (NCOs) begin with a double-strand break (DSB) of a DNA helix. Cleavage of a structure ...

Following a double-strand DNA break, an enzyme called PARP1 helps hold the two strands together —like superglue— and creates a safe zone for other proteins to come repair the damage. We don’t exactly ...

You can always be judged by your scars. This is the idea that sums up what researchers at Spanish National Cancer Research Centre (CNIO) claim is one of the new breakthroughs in basic and biomedical ...