genregionduplicationer
Genregionduplicationer are structural variations in which a segment of DNA containing one or more genes is copied, yielding an extra genomic copy. Duplications can be tandem (adjacent on the chromosome) or dispersed to different locations, and they contribute to copy-number variation within and between species.
Several mechanisms generate these duplications, including unequal crossing over during meiosis, replication-based processes such as fork
Duplication outcomes vary: increased gene dosage can alter traits; duplicate genes may retain the original function,
Detection and study rely on genomic techniques such as comparative genomics, array-based comparative genomic hybridization (array
Notable examples of gene-region duplications include the expansion of the amylase gene cluster in certain human
In evolutionary biology, genregionduplicationer are regarded as a major engine of genomic innovation, enabling new gene