Fun fact: the bananas that we eat are seedless. The natural banana has seeds and the bananas we eat are the product of a mutation where the DNA is triploid (3 of each chromosome, rather than a pair of each chromosome). They are reproduced via cutting off pieces and planting them because they can’t reproduce naturally. Since we’ve never eaten nor seen bananas with seeds, we aren’t aware that there ever were seeds in them. But we’ve all seen grapes, oranges, and watermelons with seeds so we realize that the seedless types are anomalous for those fruits.
I believe all of the seedless varieties were the product of random mutations that alert farmers took advantage of. If a seedless pumpkin came along, someone would probably do something about it. But part of the fun of carving pumpkins is scooping out seeds. Perhaps seedless pumpkins wouldn’t have the same shape? And some people like roasting and eating pumpkin seeds.
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