positional cloning
McGraw-Hill Science & Technology Dictionary:
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positional cloning
(pə¦zish·ən·əl ′klon·iŋ)
(genetics) The identification of a gene and its isolation as a cloned deoxyribonucleic acid fragment, starting from knowledge of its position on a genetic map or chromosome.
Gale Genetics Encyclopedia:
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positional cloning
The use of polymorphic genetic markers ever closer to the unknown gene to track its inheritance in CF families.
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