Rec LOH

Rec LOH

RecLOH is a term in genetics that is an abbreviation for "Recombinational Loss of Heterozygosity".

This is a type of mutation which occurs with DNA by recombination. From a pair of equivalent ("homologous"), but slightly different (heterozygous) genes, a pair of identical genes results. In this case there is an unreciprocal exchange of genetic code between the chromosomes, in contrast to chromosomal crossover, because genetic information is lost.