MAP

1. verb: to determine the relative positions of loci (genes or DNA sequences) on a chromosome. Linkage maps are obtained from the frequency of recombination between loci. Physical maps are obtained commonly by the use of in situ hybridization of cloned DNA fragments to metaphase chromosomes, or by somatic-cell hybrids or radiation hybrids . 2. noun: a diagram showing the relative position of, and distances between, loci on a chromosome.

Mean Areal Precipitation- The average rainfall over a given area, generally expressed as an average depth over the area.

Minimum Acquisition Program.

An abstract representation of the physical features of a portion of the Earth's surface graphically displayed on a planar surface. Maps display signs, symbols, and spatial relationships among the features. They typically emphasize, generalize, and omit certain features from the display to meet design objectives (e.g., railroad features might be included in a transportation map but omitted from a highway map).