0:00 Shown above is a single-source electropherogram
0:03 that is the electropherogram of a sample that is known to represent only one person's DNA.
0:12 In order to help the analyst more easily derive useful information from the electropherogram,
0:17 profiling software determines the number of STRs represented by each peak
0:22 and labels them all accordingly. Notice that the red peaks are disregarded during profiling
0:27 as they merely represent the size standard used during electrophoresis
0:32 the resulting chart of labeled peaks is the sample contributors STR profile.
0:40 When a sample or samples are provided to an analyzing lab,
0:44 the lab will deliver a report on the profile of each contributor found in the samples. This report
0:50 will list the alleles in a table labeled according to the number of STRs each has and categorized
0:56 according to contributor and the dye with which they were identified, which indicates the locus.
1:02 Any one sample may require more than one series of tests in order to identify all of its alleles
1:09 Notice that the table is already partially filled in from a previous series of tests
1:13 that were performed on this sample. Click next to view all three charts compare the
1:20 electropherogram that is produced by the initial analysis to the corresponding profile to the
1:26 final results table that presents the profile data from the testing of all 13 core loci.
1:35 Move the mouse cursor over the profile labels to
1:37 see where those alleles are listed on the results table.
