The same reason beetroot are purple and tomatoes are red.
Umm... They're yellow!!! I think it will be kind of boring if everything was orange. ANSWER: Actually, some banana varieties are close to being orange in color, although they are more of a red. Not all bananas are yellow.
Foods with orange colouring contain carotene, whilst those with yellow get their colouring from the pigment xanthophyll.
you can't get orange bananas
When bananas are growing they are green, as they ripen they go yellow and after that black and then rotten. So yellow to some may be an indication when they are good to eat. Many people consider them ready to eat only when they are yellow with brown spots.
Bananas are yellow
Bananas can be yellow, red or purple
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bananas are yellow
-I thought the answer was 'Orange you glad I didn't say bananas'. It's a "knock-knock" joke: knock knock who's there Orange Orange who? Orange you glad I didn't say bananas!
An orange is not yellow simply because it was orange and that is the way it was intended to be not yellow. Also, if the Orange was yellow, then it would be called a yellow. Not an Orange.
Of course bananas are not pink they are yellow!
Yellow bananas are also green before ripening. There are quiter a few varieties of bananas however and some of them are green.