map unit


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map unit

An arbitrary unit for the distance between genes, usually derived from the percentage of recombination, but also defined by the time at which the gene is transferred during conjugation. One map unit corresponds to a recombination frequency of 1%.

map unit

or

linkage unit

a unit of ‘distance’ between genes along a chromosome. The number of map units is directly correlated with the amount of RECOMBINATION between loci; 1% recombination is equal to 1 map unit. See CROSS-OVER VALUE, GENETIC LINKAGE.
References in periodicals archive ?
The overall index is obtained by dividing the number of points correctly classified by the total number of points, whereas the kappa index measures the concordance between predicted map units and reference map units, excluding the effect of casualty (Congalton and Green 1999; Giasson et al.
Red colors correspond to large distances; that is, large gaps exist between the prototype vector values in the input space; blue colors correspond to small distance; that is, map units are strongly clustered together.
Both methods of instance selection that account for areas located close to soil map unit boundaries tested in this study did not contribute to greater accuracy of classification trees used in digital soil class mapping when using the model to predict soil occurrence in the overall area.
As stated in the literature, many construction issues are encountered when cartographically depicting language, particularly with boundaries, map unit choice, and handling linguistic diversity.
With the purpose to verify the hits distribution and to better clarify the discriminating performances of the SOM analysis about the event evolution on SCC tests on post-tensioned strands, a hits validation map was analyzed by using a fuzzy response parameter to show the relative goodness of each map unit in representing the data.
A GIS approach was used to delineate Land Type Association (LTA) map units for the Hoosier National Forest (HNF) area.
The amount of water potentially available for deep percolation and recharge would therefore greatly rely upon a thorough characterization of hydrology of representative pedons (Barner 1999) and their distribution as soil map units in a watershed.
Map Unit Code % Slope Description A 0-2 Nearly level B 2-6 Gently sloping C 6-12 Sloping D 12-18 Strongly sloping E 18-30 Severely sloping F 30-60 Steep > 60 Very steep TABLE 15-2 Designation of erosion characteristics for soil-mapping units.
The variable [d.sub.ij] represents the amount of mapping information for interval i conferred by progeny j on a per map unit basis.
Leahy S (1993) 'Atlas of Australian soils: Combined map unit descriptions.' (National Resource Information Centre: Parkes, ACT)
A buffer in any soil map unit having conditions described by groundwater categories 1 to 3 will probably interact with pollutants in groundwater.
4 way 11 KV ring map unit outdoor type and 1 no LT distribution panel comprising 1 income 4-pole ACB 800 Amp..50 KA & 2 No%s MCCB 400 Amps 35/36 KA for outgoing feeders along with one set of Aluminium bus bar 100s Amps complete in all respect as per Tender documents REC/IS Specifications for Providing SOP to central heating plant of forest deptt Building at Mist chamber under ESD chotta shimla-02