Prokaryotes have all, except: (A) Rigid cell wall, (B) Flagella, (C) Ribosomes, (D) Well defined Nuclear membrane
Answer is D. Prokaryotic cells have Cell wall, Cell membrane, ribosome, Nucleoid. BUT Nuclear membrane, nucleolus, endoplasmic reticulum, mitochondria are absent Ref: Ananthanarayana textbook of Microbiology 9th edition Pgno : 9