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Duplication
1) The presence of an extra segment of DNA, resulting in redundant copies of a portion of a gene, an entire gene, or a series of genes, usually caused by unequal crossing-over during gene replication when gametes are formed in meiosis
2) Duplication is a type of mutation that involves the production of one or more copies of a gene or region of a chromosome. Gene and chromosome duplications occur in all organisms, though they are especially prominent among plants. Gene duplication is an important mechanism by which evolution occurs.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Medical
- Category: Human genome
- Company: National Library of Medicine
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