paralogue


par·a·log

or par·a·logue P5065650 (păr′ə-lôg′, -lŏg′)n. A gene that is related to another gene in the same organism by descent from a single ancestral gene that was duplicated and that may have a different DNA sequence and biological function.
[Back-formation from paralogous : para- (in reference to the parallel descent of the two genes from a single ancestral gene) + (homo)logous.]
pa·ral′o·gous (pə-răl′ə-gəs) adj.

paralogue

(ˈpærəˌlɒɡ) neither of a pair of genes derived from the same ancestral gene