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Lecture 9

Lecture 9 IS- Origins of Variation II word.doc

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Department
Biology
Course
Biology 1001A
Professor
Dr.Mike
Semester
Fall

Description
Lecture 9 IS 1. Characteristics of STR loci that make them useful for forensic DNA analysis (DNA fin- gerprinting) - STR = short tandem repeat sequence - STR for each person is usually quite unique - each locus has a different repeated sequence - number of repeats varies among individuals - a given individual is either homozygous or heterozygous for an STR allele eg. homozy- gous for the 11-repeat allele or heterozygous for a 9-repeat allele - each individual has an essentially unique combination of alleles - analysis of multiple STR loci can discriminate between DNA of different individu-
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