Keywords: Loss of heterozygosity.PNG Loss of heterozygosity means that the another allele of the gene is lost Then only already mutated allele is left M maternal chromosome P paternal chromosome White circle normal allele black circle mutated allele orange circle point mutation in the allele red circle allele is inactivated due to the epigenetic reason Arrows show different malicious genetic happenigs In A-C cases the loss of heterozygosity of the gene has happened and mechanisms are different A The another chromosome has been lost B The malicious recombination has happened and C The deletion of the normal allele has happened In D and E cases both alleles have been inactivated but the heterozygosity remains Own 14th of May 2008 Teemu Pelkonen Own work Loss_of_Heterozygosity png Chromosomes Deletion genetics |