Yes, the wild ones. They're delicious, way better than a Cavendish but full of hard, black seeds. Like this:

Wild bananas, yes.

The ones you eat are a perfect example of a genetically modified plant - cultivated specifically for human consumption.

Well, every natural plant have seeds. They need to reproduce. Those without seeds go extinct in one generation.

Like the other replies say, wild ones do. But the ones we eat used to have them too, but we did the same magic on them as we did on wolves by creating pugs. They used to be small and so full of seeds there was barily any eatable parts.