Again, the male element may reach the female element, but be incapable of causing an embryo to be developed, as seems to have been the case with some of Thuret's experiments on Fuci.
Honez gain, elementu arra emera heltzeko gai izan daiteke, baina enbrioi garagaia sortzeko ez, Thuretek Fucus-ean eginiko esperimentu batzuetan dirudienez gertatu den moduan.