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Oct. 08, 2008

Here a SNP, There a SNP

by Miriam Gordon

A "SNP" is a single nucleotide polymorphism. Within a genetically distinct population, i.e. people of a certain ethnicity, religion, or geographic region, there are several versions of the DNA sequence of any given gene that is almost identical, with the exception of one sequence unit at a specific site. This single nucleotide variation occurs in the population at observable frequencies. Read more

About Miriam Gordon

The views expressed are those of the author and are not necessarily those of Science Friday.

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