Chloroplasts. Ever decreasing circles.
McFadden
G
G
D000818:Animals; D002736:Chloroplasts / Q000235:genetics*; D004270:DNA, Circular / Q000737:chemistry; D016054:DNA, Protozoan / Q000737:chemistry; D004141:Dinoflagellida / Q000145:classification / Q000235:genetics*; D019143:Evolution, Molecular; D018503:Genome, Protozoan; D010802:Phylogeny; D013559:Symbiosis
D004270:DNA, Circular; D016054:DNA, Protozoan