Random Thought of the Day

So I was listening to the radio and a commercial came on, damned commercials. It was about some grocery store, Albertson's I suppose, and they were advertising Green and Purple Seedless Grapes. Now my question is this,
If these grapes are seedless... how do they reproduce? Are they cloned? Is every grape I eat the same exact grape as the one before? Creepy much? Maybe they just sprout off the vine? But if that's the case, where does the vine come from? Maybe the grapes have seeds but someone has to go and pull every seed out of the grape before shipping them off. No, that seems like too much work. It's quite a mystery. I wonder if we can grow other things without seeds, like apples, lemons, or maybe even avacados!