Question:
Which of these techniques cannot differentiate between identical twins?
Which of these techniques cannot differentiate between identical twins?
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Identical Twins: Same DNA, Different Fingerprints.
Updated On: May 14, 2026
- Whole genome sequencing
- High resolution melt curve analysis
- Fingerprint comparison
- DNA fingerprinting
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The Correct Option is D
Solution and Explanation
Step 1: Concept
Identical (monozygotic) twins originate from a single fertilized egg that splits, meaning they share the same genetic code.
Step 2: Meaning
DNA-based techniques look at the genetic sequence, whereas physical traits like fingerprints are influenced by environmental factors in the womb (epigenetics/development).
Step 3: Analysis
Standard DNA fingerprinting and whole genome sequencing will show virtually identical results for both twins because their DNA sequences are the same. Fingerprints, however, are unique to every individual, even identical twins, due to random developmental variations.
Step 4: Conclusion
Therefore, DNA fingerprinting cannot differentiate them, but fingerprint comparison can. Final Answer: (D)
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