defined:

A particular kind of mutation: production of one or more copies of any piece of DNA, including a gene or even an entire chromosome.

explained:

Listen to a detailed explanation. (Requires the free RealPlayer download)

Dr. William Pavan, of the National Human Genome Research Institute's Laboratory of Genetic Disease Research, defines duplication.

illustrated:

View illustration

related
terms:

cancer, chromosome, deoxyribonucleic acid (DNA), gene, genome, mutation, phenotype, protein

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