Electrophoresis

magine a rape/ murder has just happened. The police go in to recover evidence. The only thing that can be found is a sample of DNA from a trace of blood on the victim. This DNA sample must be some how linked top the suspect. These DNA samples can be separated using gel electrophoresis. The number and position of bands formed on each lane of gel is the actual genetic "fingerprint" of that DNA sample. …

…project made possible by DNA technology is the effort to map the entire human genome. Four complementary approaches are being used: 1. Genetic (linkage) mapping of the human genome. 2. Physical mapping of the human genome. 3. Sequencing the human genome. 4. Analyzing the genomes of other species. These four approaches are yielding data that together will give a complete map of the human genome and an understanding of how the human genome compares to those of other organisms