| extranuclear inheritance | <genetics> Inheritance of parental characters through a nonchromosomal means, thus mitochondrial DNA is cytoplasmically inherited since the information is not segregated at mitosis. In a broader sense the organisation of a cell may be inherited through the continuity of structures from one generation to the next. It has often been speculated that the information for some structures may not be encoded in the genomic DNA, particularly in protozoa that have complex patterns of surface organelles. See: maternal inheritance. (18 Nov 1997) |
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| y-linked inheritance | Inheritance by genes on the y chromosome. Also called holandric inheritance. (12 Dec 1998) |
| uniparental inheritance | <genetics> A type of inheritance in which the offspring of a mating has the phenotype (observable physical traits) of only one parent. (09 Oct 1997) |