Genetics the condition in which a single gene exerts simultaneous effects on more than one character in the offspring
Origin of pleiotropypleio- + -tropy
The production of diverse effects, especially the production by a single gene of several distinct and seemingly unrelated phenotypic effects.
Origin of pleiotropyGreek plei&omacron;n, more; see pel&schwa;-1 in Indo-European roots + –tropism.
(countable and uncountable, plural pleiotropies)