[The unusual typing of short tandem repeats].
Short tandem repeats (STRs) have been widely used in forensic sciences such as stain analysis and paternity testing. Although most of STR typing could give the reliable and clear results, some unusual typing have been observed in forensic practice. The anomalous typing could result from a lot of causes, including DNA genetic variation, poor quality or quantity of DNA template, different typing system or method, nonspecific reaction in PCR or anomalous electrophoresis migration. The unusual results may disturb the right interpretation of STR typing.
Lu
De-jian
DJ
Department of Forensic Serology, Sun Yat-sen University of Medical Sciences, Guanzhou 510089.
Chen
Yu-chuan
YC
Lu
Hui-ling
HL
D016172:DNA Fingerprinting / Q000379:methods*; D005554:Forensic Medicine / Q000379:methods; D005787:Gene Frequency; D005838:Genotype; D006801:Humans; D016133:Polymerase Chain Reaction / Q000379:methods; D011110:Polymorphism, Genetic; D020080:Tandem Repeat Sequences / Q000235:genetics