In genetics,<unk>  is a general term for the<unk>  of genetic information that does not obey<unk>  rules.  Briefly stated, in<unk><unk> , the probability that a diploid parent will pass on to its progeny a given one of its two alleles for a particular locus is 50%, and each progeny receives one allele from each of its parents.  Which allele comes from which parent is not important.<unk>  can therefore be<unk><unk>  in at least three ways:
First, if a genetic element has a greater-than-50% chance of being passed on to an offspring, such as transposition,  gene conversion, unequal chromosomal crossover and segregation distorter then the<unk>  is<unk><unk> .
Second, some genetic elements are inherited only from one parent, such as those in mitochondria and chloroplasts.
Third, a gene's behavior can depend on which parent the gene is inherited from, a phenomenon known as imprinting.
Non-mendelian inheritance
Expressivity
Sexual dimorphism
Hysteresivity
Stereoisomerism
Triparental mating
Heredity
Aneuploidy