Changed genes, DNA sequences or chromosome structures which occur naturally in the population and do not cause any harm to the individual.
Naturally occurring variations in DNA sequence. Polymorphisms are useful as genetic markers because they allow researchers to distinguish between DNA of different origins.
Variations in genes (DNA) that may improve, degrade or leave unchanged, the capability of the associated protein. They contribute towards the differences between individuals in a population.
DNA sequence variation that occurs in at least 1% of the population.
the differences in DNA sequences that occur naturally. They are used as genetic markers because researchers can use them to tell apart DNA from different sources.