is algae a prokaryote
Because the cyanobacteria (the blue-green algae) have very large cells and a green color, they were assumed to be algae. But, we now know they are actually a type of bacteria, and thus, prokaryotes. They lack membrane bound organelles, including a nucleus, and they have circular DNA. Molecular biology has also now shown that their genetics clearly place them among the bacteria, not the algae.