Linkage group
A group of gene loci known to be linked; a chromosome. There are as many linkage groups as there are homologous pairs of chromosomes. See synteny.
Related Terms:
Gene ...
linkage group Genes linked to the same chromosome that tend to be inherited together.
linkage Tendency of genes located on the same chromosome to be inherited together.
linked gene Gene located on the same chromosome as another gene.
However we have 24 different chromosomes or linkage groups. Genes on the same chromosome are said to belong to a common linkage group.
Results: Unambiguously ordered multilocus maps of extended linkage groups, with adjacent markers spaced no more than 20 cM apart, for all chromosomes.
Linkage groups are invariably the same number as the pairs of homologous chromosomes an organism possesses.
In fact, the genes Mendel studied occurred in only four linkage groups, and only one gene pair (out of 21 possible) is close enough to show segregation distortion; this is not a pair that Mendel studied.
 See also: Linkage, Chromosome, Species, DNA, Character
  
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