Matches are based on centimorgans
(cM)--the unit of gene measurement.
It is estimated that there are one million DNA base pairs in 1 centiMorgan
(unit of recombination, or 1% probability of crossover).
A Kosambi centimorgan
is a unit of recombination frequency, adjusted for region-specific interference.
Localization of the Autosomal Dominant HLA-Linked Spinocerebellar Ataxia (SCA1) Locus in Two Kindreds Within an 8 Centimorgan
Subregion of Chromosome 6p.
For example, classical genetics used a unit called (as it happens) the morgan or centimorgan
For each centiMorgan
(cM) position of the genetic map, a likelihood ratio (LOD score) was computed.
Studies in the early 1990s had also positioned the HH gene to <1 centimorgan
from the HLA-A locus (4).
2] animals to map a QTL with an effect size of 5 percent, the DNA region that would contain the QTL with 95 percent certainty would encompass 25 centiMorgan
(cM) or, for most chromosomes, between 35 and 50 million nucleotides-a region that typically contains hundreds of genes.
The amplified DNA was mapped within 3 centimorgan
(cM) of mouse IL-1R1 gene but did not show any homology with the mouse IL-1R1 apart from the primer.