What is polymorphic DNA?
Polymorphic DNA: DNA sequences which are relatively variable between different individuals or species. Some stretches of DNA within a genome will be extremely conserved (will not vary) among individuals. Such conserved DNA will not be useful for analytical methods which use DNA to find differences among individuals. Alternatively, some stretches of DNA within a genome tend to vary moderately or greatly among individuals. These variable stretches of DNA will be far more informative when using DNA to distinguish individuals from one-another. These are tested mainly through RAPD. RAPD stands for Random amplification of Polymorphic DNA. http://en.wikipedia.org/wiki/RAPD This can be used genetically to study mutation rates and also during forensic applications ….for example when you need to find which person actually did the murder you can use this method …… each individual person will have a unique DNA pattern because of
