Since the human DNA contains more than 3 billion base pairs .
We need to store a DNA substring for every index and a 32 - bit integer for index itself , the storage requirement for such an inverted index would probably be in the tens of gigabytes .
Since the human DNA contains more than 3 billion base pairs , and we need to store a DNA substring for every index and a 32 - bit integer for index itself , the storage requirement for such an inverted index would probably be in the tens of gigabytes .