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
Disputed maternity can be solved by using the following tests, EXCEPT: 
Select and explain. 
A. Blood grouping, B. HLA typing, C. Preciptin test, D. DNA fingerprinting
C: Preciptin test
Answer: C: Preciptin test 
Explanation: Precipitin test is an antigen-antibody reaction test, used to distinguish between species. It uses species specific antiserum. It will not be used for disputed maternity. Ref: Textbook of Medical Jurisprudence, Forensic Medicine and Toxicology By Parikh, 6th Edition, Pages 7-21 ; The Essentials of Forensic Medicine and Toxicology By K S Narayan Reddy, 27th Edition, Pages 402