Copy number variation is a phenomenon in which sections of the genome are repeated and the number of repeats in the genome varies between individuals. Copy number variation is a type of structural variation: specifically, it is a type of duplication or deletion event that affects a considerable number of base pairs.

How many copy number variants are there?

Copy Number Variation Is Common in Human Genomes

A total of 297 clusters were identified: 139 insertions, 102 deletions and 56 inversions breakpoints. Across the genome, 163 of the structural variants map to regions of segmental duplication.

What is copy number variant in genetics?

Listen to pronunciation. (KAH-pee NUM-ber VAYR-ee-unt) Refers to the genetic trait involving the number of copies of a particular gene present in the genome of an individual.