Hence along with growing and complete determinants the idioplasm always contains likewise weakened and vanishing determinants.
But only such changes are transmissible to future generations as have resulted from modifications arising in the idioplasm.
The presence of idioplasm in all parts containing the primary constituents does not help us in this respect.'
Each ontogeny (individual) begins in a minute germ cell, in which a small quantity of idioplasm is contained.
It will be found that characters totally contradictory are ascribed to Weismann's idioplasm.
External stimuli exerted on the organism are reproduced in the idioplasm.
The idioplasm varies in two ways: by an automatic perfecting process; by adaptation to environment.
Organisms arise from a germ cell which consists of idioplasm and in turn they produce like germ cells.
Races arise from gamogenic or pathological variations of the idioplasm.
Varieties arise by extremely slow changes in the idioplasm due to the perfecting process and adaptation.