Mirabilis jalapa Carl Correns<unk>  is any pattern of<unk>  in which traits do not segregate in accordance with Mendel's laws. These laws describe the<unk>  of traits linked to single genes on chromosomes in the nucleus. In<unk><unk> , each parent contributes one of two possible alleles for a trait. If the genotypes of both parents in a genetic cross are known, Mendel's laws can be used to determine the distribution of phenotypes expected for the population of offspring. There are several situations in which the proportions of phenotypes observed in the progeny do not match the predicted values.<unk>  plays a role in several disease which affected the processes.
Non-Mendelian inheritance
Structural inheritance
Heteroplasmy
Allelic heterogeneity
Genetic heterogeneity
Variegation 
Germline mosaicism
Expressivity 