(hŏ-mol'ŏ-gŭs )

[Gr. homologos, agreeing, of one mind]

1. In biology, similar in origin and structure but different in function, such as the forelegs of a quadruped, the arms of a human, and the wings of a bird; or a penis and a clitoris.

   SEE: analogous.

2. In genetics, having the same genes or alleles with loci usually in the same order.