This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parasitology Pa 2 (Helminthology), Subject name: Microbiology
[{'content': 'All of the following are true about Brugia malayi except - \nSelect and explain. \nA. The intermediate hosts in India are Mansonia, B. The tail tip is free from nuclei, C. Nuclei are blurred, so counting is difficult, D. Adult worm is found in the lymphatic system', 'role': 'user'}, {'content': 'Answer: B \nExplanation: TAIL TIP:- no nuclei seen in W. bancrofti 2 terminal nuclei :-microfilaria of brugia malayi Brugia malayi: 1. Transmission: Nocturnal strains: Transmitted from Man-Man by bite of Mansonia Subperiodic strains: Transmitted from monkey (Zoonotic): by Mansonia Anopheles and Aedes rarely transmit. Diagnosis: Microfilaria is differentiated from that of W. bancrofti by pointed tail tip, Nuclei column darkly stained, large, coarse, overlapping, extended till the tail tip. Head end of microfilaria - Sheathed, cephalic space (2:1), darkly stained large coarse overlapping nuclei. Tail end of microfilaria - 4-5 nuclei in the tail region and 2 widely spaced nuclei in tail tip', 'role': 'assistant'}]