If this was politics, "impressive" wouldn't be the adjective used.
He was born through an extramarital affair of his father, Swedish biochemist Sune Bergström (1916–2004), who, like his son, became a recipient of the Nobel Prize in Physiology or Medicine (in 1982). Pääbo is his mother's only child; he has via his father's marriage a half-brother (also born in 1955).
Anyone who's had a great mentor knows how impactful they can be on the trajectory of your career just in terms of how much more effective you can be.