You may wonder that our earth has millions and billions of different kinds of animals but all of them yes all of them have one common feature in their body,guess what? Yes it’s DNA(DEOXYRIBOSNUCLEIC ACID). Our earth had come across many billion years of life evolution like jurassic age. But the DNA lasts till now. Then question arises where does DNA come from? So,there is what called penspermia theory. According to this theory the DNA might come from outside the planet may be from meteorites because when scientists make slices of meteorites they found DNA like structures in that. Or may be DNA survives till now because of a planet earlier than earth like our sun is a star of 2nd or 3rd generation of single star born billion of years ago. So research continues…
Give your comments below for your opinions for DNA in earth.
Science Lover 