How extra chromosomes help plants survive cataclysms
Many plants, including many species of bananas, have more than two sets of chromosomes. This can make the species more resilient to major environmental catastrophe, researchers find. Wolfgang Kaehler/LightRocket/Getty Images hide caption toggle caption Wolfgang Kaehler/LightRocket/Getty Images Most people are diploid. That is, we have two sets of chromosomes — one set from each parent.