Genotype (Gr. genea, race; typto, strike), the germinal constitution of an organism.
Geotropism (Gr. ge, earth; tropē, turning), defined, [p. 198].
Germ-Cell, a reproductive cell.
Germinal Variations, variations which owe their origin to some modification in the germ-cells.
Germ-Plasm, the material basis of inheritance.
Gonad (Gr. gonos, generation), a germ-gland.
Haploid (Gr. haploos, single; eidos, form), the single or reduced number of chromosomes as found, for instance, in the mature germ-cells.
Heliotropism (Gr. helios, sun; tropē, turning), defined, [p. 198].
Heredity (L. heres, heir), resemblance of individuals to their progenitors based on community of origin.