Why might identical twins NOT have the same handedness?
A) Because some twins are "mirror opposites"
B) Only because one was conditioned for other-handedness
C) Because there is no genetic component to handedness
D) Because they only share 50% of their genetic heritage

Question

Quizplus · Accepted Answer

Identical twins can exhibit "mirror image" characteristics, including opposite handedness, despite sharing nearly identical genetic makeup. This phenomenon is not fully understood but suggests that factors beyond genetics, such as environmental influences or random developmental variations, can affect handedness.

Why Might Identical Twins NOT Have the Same Handedness