image courtesy of Geostationary Banana Over Texas
A Little Banana Biology
The bananas we eat today come from sterile, seedless plants. New plants are cloned from the cuttings of existing ones. Each banana is genetically identical to the next; essentially we keep eating the same banana over and over again.
Now think back to 10th grade science— diversity, mutation, evolution, survival of the species… bananas have none of that going on. Without genetic diversity, there can be no adaptation. What makes one banana sick will make every banana sick. A disease or environmental threat will imperil the entire species.