How could both of them have suddenly been able to halve the number of chromosomes in their reproductive cells in the manner needed to produce a healthy offspring with some characteristics of both parents?
Kuidas suutsid nad mõlemad hakata ühtäkki oma sugurakkude kromosoomide arvu poole võrra vähendama, nõnda et sai tulla esile mõlema vanema tunnusjoontega terve järglaskond?