Genomic variant: Genomic variation describes the differences between our genomes, which may or may not have an impact on our health. These can vary in size, and may impact the DNA sequence within protein coding sequence of genes, may lie in introns (i.e. the nucleotide sequence within a gene that is removed by RNA splicing before the mature RNA is formed, and which may be transcribed into protein) or intergenic regions (i.e. the nucleotide sequence between genes). A genome contains millions of genetic variations, or variants, which make each person unique.
