And now mind you, in a diploid organism like people, we've got one copy of our genome from our mom and one from our dad, so if one gets damaged, it can use the other chromosome to repair it.
En un organisme diploide com les persones, tenim una còpia del nostre genoma de  la nostra mare i el nostre pare, de manera que si un està danyat, pot usar l'altre cromosoma per a reparar-lo.