When two people fuse through the fusion dance, or the potara earrings, the newly fused product leans to the characteristics and personalities of the two former subjects, but they do not submit to their control. The only character who ever submitted to control was super Gogeta, who had no choice.
The pupil is a hole located in the centre of the iris of the eye that allows light to strike the retina. It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye directly, or absorbed after diffuse reflections within the eye that mostly miss exiting the narrow pupil.
(This definition can also be given for the iris.). The pupil is the hole that lets light enter the inner eye. Pupil of an eye controls the amount of light entering the eye. The pupil is circular opening located in the center of the iris (the colored part of the eye).