The main difference between GMO and organic produce is that GMO products have been genetically modified to increase crop yield, while organic produce is completely natural with no chemicals or other human interference.
There are some differences between conventional seeds and organic seeds. Organic seeds are USDA Certified and have a higher level of genetic integrity.
When buying bananas at the grocery store, you should check the label so you know if they are organic or non-GMO. It isn’t confirmed if GMO foods are healthy or not. In my opinion, if in doubt, eat organic. The you know you’re not eating genetically suspect foods, pesticides or other toxins.