MCQ practice · SSC Biology Board questions · Chapter 12: Heredity in Organisms and Biological Evolution
Which method of test must be done to identify a criminal accurately?
Think it through first, then pick an option.
- a PCR
- b ACR
- c Finger Printing (FP)
- d MRI
Answer and explanation
Correct answer: a PCR
With the PCR method accurate identification is possible even from a small sample.
Why the other options are wrong
- b ACR: ACR is not a method in the book. The right answer is PCR.
- c Finger Printing (FP): Fingerprinting is the name of the wider method; for today's accuracy the book names PCR.
- d MRI: MRI takes pictures of the body; it does not identify DNA.
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