FRSC 1010H Lecture Notes - Lecture 6: Dna Profiling, Nuclear Dna, Forensic Science
15 Nov 2016
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Document Summary
Dna profiling: introduction to dna applications within forensic science. Deoxyribonucleic acid is a genetic blueprint that makes a living being. Each person has 23 pairs of chromosomes. It can be extracted from a person"s chromosome. Chromosomes are found in the nucleus of a cell. Dna samples can be taken from blood, semen, skin cells, tissue, bone and saliva. How is dna analysis done: samples are taken from the victim, evidence, and suspects, dna is extracted from different locations of each of the chromosomes. A sequence profile is drawn up for each dna which is extracted: the dna sequence from the sample is then matched from that of the suspect. Each person has a unique set of dna attributes. Keep the science in forensic science, no presumptions. Endocodes genetic information for all living organisms. Dna molecule includes sugar backbone, phosphate groups and 4 nucleotide bases (a, g, c, t) paired by h-bonds.
