There are more potential combinations of DNA [physical forms] than there are atoms in the universe. — Carl Sagan Copy Share Image
![“There are more potential combinations of DNA [physical forms] than there are atoms in the universe.” quote by Carl Sagan](https://sms4smile.com/quotes/img-quotes/89d/carl-sagan-160_atoms_there-are-more-potential-combinations-of_2524144.jpg)