Unformatted text preview: resis. DNA fragments are injected into wells and an electric current is applied along the gel. Stages of DNA Profiling
Stages DNA is negatively charged so it is attracted to the positive end of the gel.
The shorter DNA fragments move faster than the longer fragments. DNA is separated on basis of size. Stages of DNA Profiling
A radioactive material is added which combines with the DNA fragments to produce a fluorescent image. A photographic copy of the DNA bands is obtained. Stages of DNA Profiling
Stage 4: The pattern of fragment distribution is then analysed. Uses of DNA Profiling
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