CNV (Copy Number Variation)

CNVs are structural variations in the DNA sequence of cells that result in an abnormal number of copies of one or more segments of the DNA. This leads to a DNA or genomic “fingerprint” that is highly unique to an individual. The catalogue of CNVs in an individual is rapidly becoming an indispensible tool to clarify a host of healthcare issues, including potential susceptibility or resistance to diseases. Having a “baseline” catalogue of one’s unique CNV profile when healthy can be important to facilitate the interpretation of genomic data in future illnesses.