Copy Number Variation (CNV)

Copy Number Variation (CNV) refers to changes in the number of copies of a specific DNA segment within our genome. Instead of having the usual two copies of a gene, some individuals may have extra copies or fewer copies. These variations can influence how genes function, potentially affecting traits, health, or susceptibility to certain diseases. CNVs are a natural part of genetic diversity and can range from small segments to large sections of chromosomes. Researchers study CNVs to better understand genetic contributions to health and evolution.