DNA is the instruction manual for how to produce an organism, one gene at a time. But our heart cells, liver cells, and brain cells are different, despite having the same DNA, thanks in part to the “epigenetic” modifications that control which genes are expressed.
DNA can be more than just the genetic code. Can four specially designed strands of DNA destroy cancer cells?
It turns out that people with lung cancer may breathe out different molecules than people without. Scientists are figuring out which molecules to look for to diagnose cancer!