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Physical map
1) A physical map of a chromosome or a genome that shows the physical locations of genes and other DNA sequences of interest. Physical maps are used to help scientists identify and isolate genes by positional cloning.
2) A map of the locations of identifiable landmarks on DNA (e.g., restriction-enzyme cutting sites, genes), regardless of inheritance. Distance is measured in base pairs. For the human genome, the lowest-resolution physical map is the banding patterns on the 24 different chromosomes; the highest-resolution map is the complete nucleotide sequence of the chromosomes.
- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Health care
- Category: Genetic disorders
- Company: National Library of Medicine
- Product:
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