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defined:
A particular kind of mutation: loss of a piece of DNA from a chromosome. Deletion of a gene or part of a gene can lead to a disease or abnormality.
explained:
Listen to a detailed explanation. Dr. William Pavan, of the National Human Genome Research Institute's Laboratory of Genetic Disease Research, defines deletion.
illustrated:
View illustration
relatedterms:
chromosome, deoxyribonucleic acid (DNA), gene, genome, mutation
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