Clones

Clones, a photo by pdecell on Flickr.

The grocery store bananas in the States are clones. That is they are genetically identical. In the short run this is great for the consumer and producers since the quality is uniform. But from a long term perspective this is a disaster since that banana's enemies keep on evolving, Here is a good review of the situation. http://www.conservationmagazine.org/2008/09/the-sterile-banana/