DNA and our Ancestor

Is there any connection between DNA and our ancestors? If so, please throw some light.

Sri Sri Ravi Shankar:

Yes, absolutely there is. Where do you think your DNA originated from? It didn’t drop from the sky. Obviously,it has come from your ancestors. But I can tell you one thing that you may not know, a banana contains 50% of your DNA. A human being and a banana share 50% of the same DNA which means two bananas equal to the DNA of one human being. or one banana is equal to the DNA of half of a human being. This is what the scientists say.