1.

DNA polymorphism is the basis of DNA finger printing technique. Explain.

Answer»

Allelic sequence variation has traditionally been described as a DNA polymerism if more than frequency greater than 0.01. Simply, if an inheritable mutation is 1° observed in a population at high frequency, it is referred to as DNA polymorphism. The probability of such variation to be observed in non-coding DNA sequence would be higher as mutations in these sequences may not have any immediate effect in an individual's reproductive ability. These mutations keep on accumulating generation after generation, and form one of the basis of variablility. There is a variety of different types of polymorphisms ranging from single nucleotide change to very large scale changes. For evolution and speciation, such polymorphisms play very important role. 

The single nucleotide polymorphisms is used in locating diseases and tracing of human history.



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