The positive<unk>  (RER+) defines a subgroup of tumors that have been documented well in Hereditary nonpolyposis colorectal cancer (HNPCC). More recently, this<unk>  also has been described in breast carcinoma and is a predictor of metastases.
Replication error phenotype
Ancestry-informative marker
Paternal age effect
Thrifty phenotype
Sex linkage
Variegation 
Non-Mendelian inheritance
Genetic heterogeneity