Humans, and most species, are diploid: They have two complete sets of chromosomes, one from each parent. Most plants are polyploid, with cells replicating again and again. Polyploidy is what fattens ...

Northwestern Medicine investigators have discovered new mechanisms underlying cellular adhesion and repair, findings that ...

However, the team also discovered that polyploid cells can tolerate a greater amount of DNA damage than diploid cells. As diploid cells accumulate damage, they eventually stop cell division and ...