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.

The TSAR supergroup is a group of Bikonts containing telonemia (T), stramenopiles (S), alveolata (A), and rhizaria (R).

The SAR supergroup is a group of Bikonts containing stramenopiles (S), alveolata (A), and rhizaria (R).

 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.

 References 

Category:Eukaryotes