Question

Which of the following molecular genetic technique(s) is/are used in forensic science?

• A. Coimmunoprecipitation
• B. DNA fingerprinting
• C. Restriction fragment length polymorphism
• D. Electrophoretic mobility shift assay

Hint:

DNA fingerprinting and RFLP both detect unique DNA patterns — key in forensic, paternity, and criminal identification.

Answer 1

The Correct Option is B, C

Step 1: Recall forensic DNA techniques.
Forensic identification is based on variation in DNA sequences among individuals.
Step 2: Analyze each option.
(A) Coimmunoprecipitation — detects protein–protein interactions (not forensic).
(B) DNA fingerprinting — based on variable number tandem repeats (VNTRs), used for identity testing.
(C) RFLP — detects polymorphisms by fragment length differences; used in early forensic methods.
(D) EMSA — detects DNA–protein binding (not forensic).
Step 3: Conclusion.
Hence, techniques (B) and (C) are used in forensic science.