Duplication mutation

Definition

noun

A type of mutation in which a portion of a genetic material or a chromosome is duplicated or replicated, resulting in multiple copies of that region.


Supplement

Duplication results from an unequal crossing-over between misaligned homologous chromosomes during meiosis. It may involve a replication of a portion of DNA, or of an entire chromosome.


Synonyms:


Compare: deletion mutation.
See also: mutation.

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