Patient's question:
Result 4q21.1 (78060001---78340000) 3, repeated segment size is 0.28 MB. It indicates that this sample has a copy number variation of approximately 0.28 MB on the long arm of chromosome 4. Public database search shows that the pathogenicity of the duplicated region on chromosome 4 is unknown.Doctor's answer:
Repetition is an important pathway in evolution. The fundamental basis of the evolution of organisms from simple to complex is the increase in the amount of genomic DNA and the generation of new genes, and repetition is the only way to increase genomic content and generate new genes.