So when a plant or an animal cell detects a double-stranded break in its DNA, it can fix that break, either by pasting together the ends of the broken DNA with a little, tiny change in the sequence of that position, or it can repair the break by integrating a new piece of DNA at the site of the cut.
Cando una célula animal ou vexetal detecta una dobre rotura de hélice no seu ADN, pode reparala, xa sexa por copia e pega dos extremos do ADN roto cun pequeno cambio  na secuencia desa posición, ou pode reparar a rotura integrando un novo anaco de ADN