This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
Spermin in semen is detected by? 
Select and explain. 
A. Barberiotest, B. Florence, C. ELISA, D. Agglutination inhibition
A: Barberiotest
Answer: A: Barberiotest 
Explanation: Ans. is 'a' i.e., Barberio test Microchemical tests for seminal stain analysis:A) Barberio's test - Yellow coloured crystals of spermin picrate.B) Florence test - Brown crystals of choline periodide.