I didn't quite understand his "why biology" section. From what he describes it was advances in sequencing and bioinformatics that helped his child, not biology

I didn't quite understand his "why biology" section. From what he describes it was advances in sequencing and bioinformatics that helped his child, not biology per se (though I would never want to play down how important biology is in underpinning these two). Perhaps he has a broader definition of biology than a specialist in bioinformatics like myself.