Opinion ID: 1160857
Heading Depth: 2
Heading Rank: 2

Heading: Processing DNA Samples and Generating Autorads

Text: [] [For a detailed description of the seven-step process by which RFLP methodology is applied to a DNA sample to produce an autorad, see Venegas, supra, 18 Cal.4th at pages 60 through 62, 74 Cal.Rptr.2d 262, 954 P.2d 525.] The location of a band on the X-ray film [autorad] indicates the distance a fragment traveled as a result of electrophoresis, and hence the length of the fragment. The size-marker fragments also appear on the films, enabling measurement of the base-pair lengths of the sample fragments. [¶] The end result of the processing substeps is a picture of a person's DNA pattern ... consist[ing] of a series of bands (usually eight) representative of a few selected bits of DNA.... ( Barney, supra, 8 Cal.App.4th at p. 808, 10 Cal. Rptr.2d 731.)