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Calculation of probability of paternity using DNA sequences
D W Gjertson1, M R Mickey, J Hopfield
1UCLA Tissue Typing Laboratory 90024.
American Journal of Human Genetics
|December 1, 1988
Summary
This study introduces allele measurement error into paternity probability calculations. Simple formulas were developed and validated using DNA D14S1 region data from 35 paternity cases.
Area of Science:
- Forensic genetics
- Statistical genetics
Background:
- Paternity testing relies on probability calculations.
- Allele measurement error can affect accuracy.
Purpose of the Study:
- To incorporate allele measurement error into the Essen-Möller paternity probability formula.
- To develop and validate a computational method for paternity testing with measurement error.
Main Methods:
- Developed an approximate solution for highly polymorphic genetic systems.
- Applied the method to the D14S1 DNA region.
- Utilized gel electrophoresis mobility for fragment length determination.
- Validated the method with 35 paternity cases.
Main Results:
- Derived simple formulas for paternity probability incorporating allele measurement error.
- Demonstrated the method's validity using D14S1 DNA sequence data.
- Confirmed accuracy with real-world paternity case results.
Conclusions:
- The computational method accurately addresses allele measurement error in paternity testing.
- The simplified formulas offer a practical approach for forensic genetics.
- This work enhances the reliability of paternity probability assessments.