Abstract
When more than one individual contributes biological material to a forensic stain, the resulting DNA type is termed a DNA mixture. DNA mixtures occur frequently in forensic genetic casework, and in recent years much research has been devoted to this subject.This paper presents the exact distribution of the number of alleles for any number of profiles and investigated loci. The per locus number of observed alleles is of interest as it indicates the plausible range of the number of contributors. Furthermore, the total number of alleles across all loci are used by some forensic geneticists to estimate the allelic drop-out probability.
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More From: Forensic Science International: Genetics Supplement Series
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