- congeniality: going together well
- disingenuous: not candid or frank; insincere
- gen, geno, genea: race, kind, birth
- genealogical: ancestral
- genealogy: history of the descent of a person or a family from an ancestor
- generate: to produce offspring
- generic: universal
- genesis: origin
- geneticist: a specialist in genetics
- genetics: the branch of biology dealing with heredity
- genial: friendly; amiable
- genius: a great mental capacity
- genocide: extermination of a race of people
- genome: one complete set of chromosomes
- genotype: the type species of a genus
- genre: a kind or type, as in literature or art
- genus: a classification of plants and animals
- heterogeneous: differing in kind; dissimilar
- homogeneous: of the same kind; similar
- homogenize: make homogeneous
- ingenuous: naïve, simple