Multiple choice Antibiotic chloramphenicol is isolated from which of the following organisms? Eubacteria Archebacteria Slime molds Fungi Streptomyces Reveal answer Fill a bubble to check yourself E Correct answer Explanation Streptomyces is the largest genus of Actinobacteria and the type genus of the family Streptomycetaceae. Chloramphenicol is known as a broad-spectrum antibiotic, which is synthesized by streptomyces species.