has derived the same character from both of the generating gametes. In the absence of dominance the given character of the hybrid usually presents a "blend" or intermediate condition between the two parents.
Dysgenic (bad origin), tending to impair the racial qualities of future generations; the opposite of eugenic.
Endogamy (within mating), a custom of some primitive peoples, in compliance with which a man must choose his wife from his own group (clan, gens, tribe, etc.).
Eugenic (good origin), tending to improve the racial qualities of future generations, either physical or mental.
Euthenic (good thriving), tending to produce beneficial acquired characters or better conditions for people to live in, but not tending (except incidentally and indirectly) to produce people who can hand on the improvement by heredity.
Evolution (unroll), organic, the progressive change of living forms, usually associated with the development of complex from simple forms.
Exogamy (out mating), a custom of primitive peoples which requires a man to choose a wife from some other group (clan, gens, tribe, etc.) than his own.
Factor (maker), a name given to the hypothetical something, the independently inheritable element in the germ-cell, whose presence is necessary to the development of a certain inherited character or characters or contributes with other factors to the development of a character. "Gene" and "determiner" are sometimes used as synonyms of factor.
Feeble-mindedness, a condition in which mental development is retarded or incomplete. It is a relative term, since an individual who would be