How is DNA potentially thought to be the most important scientific discovery of all time?

Answer 1

DN A DON'T LIE LIKE REPUBLICANS

Answer 2

Mapping the genome of humans and other animals is providing insights into what specific genes perform what function. Once we know that, further study can define factors that cause the gene to malfunction and cause illness. Knowing that, we can then start looking for ways to fix the problem. Furthermore, DNA testing has become a staple in paternity testing, and in criminal investigations. Your DNA is unique, it doesnt lie. Through mitochondrial DNA (passed along maternal lines only) we are gaining huge insights into the migration of early humans across the planet and have proven pretty conclusively that every human alive now is descendant from one woman who lived in Africa thousands of years ago.