Canadian Medical Guide > Analytical, Diagnostic and Therapeutic Techniques and Equipment > Investigative Techniques > Genetic Techniques > Chromosome Mapping > Chromosome Walking Terms and Definitions

Chromosome Walking

Medical Definition:	A technique with which an unknown region of a chromosome can be explored. It is generally used to isolate a locus of interest for which no probe is available but that is known to be linked to a gene which has been identified and cloned. A fragment containing a known gene is selected and used as a probe to identify other overlapping fragments which contain the same gene. The nucleotide sequences of these fragments can then be characterized. This process continues for the length of the chromosome.
Guide Notes:	technique for exploring an unknown region of a CHROMOSOME
Previously Indexed:	Chromosome Mapping (1983-1990),Cloning, Molecular (1983-1990)

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