This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mycology, Subject name: Microbiology
Black dot ring worm is caused by - 
Select and explain. 
A. Microsporum, B. Trichophyton, C. Epidermophyton, D. Candida
B: Trichophyton
Answer: B: Trichophyton 
Explanation: Ans. is 'b' i.e., Trichophyton o Black dot lesions are seen in Tinea capitis.o The hairs are broken at the level of the skin surface producing a picture of black dots in an area of alopecia,o T. tonsurans is the chief cause of "black dot1' tinea capitis.