Since he could see no obvious means of communication between the two, he asserted that the inheritance of acquired characteristics was therefore impossible; a conclusion now known as the Weismann barrier.
Budući da nije mogao vidjeti nikakvo očito sredstvo komunikacije između ovih dvaju stanica, tvrdio je da je nasljeđivanje stečenih karakteristika stoga nemoguće; zaključak danas znan kao Weismannova barijera.