Biophore: an ultimate constituent of germ plasm or hereditary substance.
"Explanation of Terms Used in Entomology" by John. B. Smith
Biophores, 40, 47, 58.
"On Germinal Selection as a Source of Definite Variation" by August Weismann
In this he distinguishes simple and complex component parts, the biophores, determinants, ids, and idants.
"The Biological Problem of To-day" by Oscar Hertwig