Polydactyly is the condition of having extra fingers or toes. Some polydactylous persons possess extra fingers or toes that are fully functional, whereas others possess only a small tag of extra skin. This is an example of:
A) variable expressivity.
B) complete dominance.
C) independent assortment.
D) complementation.
E) cytoplasmic inheritance.

Question

Quizplus · Accepted Answer

Variable expressivity is the phenomenon in which a single genotype can produce a range of phenotypes. In the case of polydactyly, some individuals with the same genotype may have fully functional extra fingers or toes, while others may have only a small tag of extra skin.

Polydactyly Is the Condition of Having Extra Fingers or Toes