Bikont

A bikont ("two flagellae") is any eukaryotic organism in the group Bikonta. Many single-celled members of the group, and the presumed ancestor, have two flagella.
Enzymes.
Another shared trait of bikonts is the fusion of two genes into a single unit. The genes for thymidylate synthase (TS) and dihydrofolate reductase (DHFR) code for a single 
protein with two functions. 
The genes are separately translated in unikonts.