par·a·log or par·a·logue 
(părə-lôg′, -lŏg′)
(părə-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·ralo·gous (pə-rălə-gəs) adj.
- threepence
- threepenny
- three-piece
- three-ply
- three-point landing
- three-point line
- three-quarter
- three-quarter binding
- three-ring circus
- three R's
- threescore
- three sheets in the wind
- three sheets to/in the wind
- three sheets to the wind
- Three Sisters
- threesome
- three-square
- three squares a day
- three-toed sloth
- three way
- three-way
- three-wheeler
- thremmatology
- threnodial
- threnodic