I've been reading a bit about "junk DNA" and how much of our genome consists of this "non coding DNA" in comparison to "coding DNA". I'm just an interested layperson but I thought all combinations of ...
What length are the shortest strings of DNA not present in any known person's genome, and what are they? And is there a database online by which I could find this out?
Currently it is possible and not so expensive for a person to have his genome. This is useful in general for understanding how life works. But, in practice, how is this useful for the specific person ...