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: Forensic Medicine
Spermin in semen is detected by ? 
Select and explain. 
A. Barberio test, B. Florence, C. ELISA, D. Agglutination inhibition
A: Barberio test
Answer: A: Barberio test 
Explanation: Ans. is 'a' i.e., Barberio test Microchemical tests for seminal stain analysis:Barberio's test -Yellow coloured crystals of spermin picrate.Florence test Brown crystals of choline periodide.