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External visible characteristics prediction through SNPs analysis in the forensic setting: a review
Pamela Tozzo1, Caterina Politi2, Arianna Delicati1
1Department of Molecular Medicine, Laboratory of Forensic Genetics, University of Padova, 35121 Padova, Italy.
Frontiers in Bioscience (Landmark Edition)
|November 1, 2021
Summary
Forensic genetics now analyzes external visible characteristics (EVC) using Single Nucleotide Polymorphisms (SNPs) to aid investigations. This technology helps identify suspects when traditional DNA databases yield no matches, advancing police work.
Area of Science:
- Forensic Genetics
- Human Genetics
- Molecular Biology
Background:
- Forensic genetics has advanced significantly, with a new focus on analyzing external visible characteristics (EVC).
- These characteristics include eye color, hair color and morphology, skin color, facial morphology, and height.
- EVC analysis offers potential in forensic investigations, particularly when traditional DNA profiling yields no leads.
Purpose of the Study:
- To review the current state of knowledge on Single Nucleotide Polymorphisms (SNPs) related to visible traits.
- To highlight recent progress in identifying new genetic markers for EVC.
- To discuss the forensic applications and implications of these predictive genetic tools for police investigations.
Main Methods:
- Review of current scientific literature on SNPs and their association with external visible characteristics.
- Analysis of recent research progress in identifying novel genetic markers for EVC.
- Examination of the application of these genetic markers in forensic contexts.
Main Results:
- Significant progress has been made in identifying SNPs associated with various EVCs.
- These genetic markers show promise for forensic applications, aiding in suspect identification.
- The use of predictive genetic tools for visible traits is a subject of ongoing ethical debate.
Conclusions:
- SNPs analysis for EVC represents a powerful new tool in forensic genetics.
- Its application can significantly aid police investigations in challenging cases.
- Ethical considerations surrounding the use of these predictive technologies require careful deliberation.
Keywords:
External visible characteristicsForensic DNA phenotypingPhenotype predictionReviewSNPs analysisMore Related Videos
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