A genetic map provides the order of the genes on a chromosome and the approximate distances from one gene to another based on recombination frequencies. In genetic maps, 1% recombination equals 1 map unit, or 1 centiMorgan. Double crossovers between two genes go undetected; so map distances between distant genes tend to underestimate genetic distances.
-How does a genetic map differ from a physical map?

Question

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The Answer is Genetic maps are based on rates of recombination; physical maps are based on physical distances.

A Genetic Map Provides the Order of the Genes on a Chromosome