So, let’s start out with a little math.
You have a bacteria that is approximately 0.001 millimetres in length. This is, of course, incredibly small but bear with me. Then, when you open that bacteria up you find a wonderful thing inside.
You find the DNA chromosome is 1.2 millimetres long. This is amazing because that tiny bacteria had held something much bigger than itself!
But, there is more to the genetic makeup of the simple bacteria.
If you were to take the base pairs of that DNA from that same bacteria you could write a book with 9,400,000 letters. This would be equivalent to, about, thirty-one 50,000 word novels! And this is all contained in 0.001 millimetres!