> reassemble like a puzzle That’s a good enough analogy for modern DNA sequencing. The code of DNA is an image trapped in an opaque box. Instead of being abl

> reassemble like a puzzle That’s a good enough analogy for modern DNA sequencing. The code of DNA is an image trapped in an opaque box. Instead of being able to image the complete picture of an organism’s DNA, you take thousands of identical images in opaque boxes, smash the boxes and their contents into tiny pieces to get bits of image out, then line up the now exposed fragments to see the original image. It is the realignment that is the computationally expensive part of the process.