This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc., Subject name: Microbiology
[{'content': 'Which is a prokaryote? \nSelect and explain. \nA. Virus, B. Archaebacteria, C. Fungi, D. Protozoan', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (B) Archaebacteria# Classification:> Old 5 Kingdom system: Monera, Protists, Plants, Fungi, Animals> New 3 Domain System: Reflects a greater understanding & molecular evidence Prokaryote: Bacteria Prokaryote: Archaebacteria Eukaryotes: Protists, Plants, Fungi, Animals# Prokaryotes are devoid of membrane bound organelles, and thus> Nucleus: devoid of nuclear membrane and nucleolus> They do not contain Deoxyribonucleoproteins i.e. nucleic DNA is not associated with basic protein The genome consists of a single molecule double stranded DNA arranged in the form of a circle Mitotic division does not occur and these divide by Binary fission> Cytoplasm: It differs from eukaryote cytoplasm in not exhibiting protoplasmic streaming. Mitochondria, Endoplasmic Reticulum, Lysosomes and Golgi apparatus are all absent.> Chemical Composition: Cell wall of Prokaryotes contains Muramic acid and peptidoglycons while cell wall of Eukaryotes contains sterols.', 'role': 'assistant'}]