Definition of single nucleotide polymorphism in English:
A variation in a single base pair in a DNA sequence.
- In contrast, analyses of Y chromosome single nucleotide polymorphism did not provide any clear evidence for demographic expansions.
- In recent years, the complete genome sequence and thousands of single nucleotide polymorphisms from laboratory mice, which are largely genetic hybrids between Mus musculus and M. domesticus, have become available.
- But 0.1 percent vary from person to person; many of those variations are known as single nucleotide polymorphisms or SNPs (pronounced ‘snips’).