Individuals with neurofibromatosis may have a range of phenotypes, from pigment spots on the skin to tumorlike growths. This is an example of
A) incomplete penetrance.
B) gene magnification.
C) age of onset.
D) X-inactivation.
E) variable expressivity.

Question

Quizplus · Accepted Answer

Variable expressivity refers to the range of signs and symptoms that can occur in different people with the same genetic condition, as seen in neurofibromatosis.

Individuals with Neurofibromatosis May Have a Range of Phenotypes, from Pigment