The friction ridges seen in finger, palm and foot prints are different among various people but very similar between identical twins. This evidence suggests which of the following?
A) That friction ridges aid in griping.
B) That friction ridges allow for better tactile sensation.
C) That friction ridges change over time.
D) That friction ridges are genetically determined.

Question

Quizplus · Accepted Answer

The fact that friction ridges are very similar between identical twins suggests that they are genetically determined. This is because identical twins have the same DNA, so any similarities in their physical traits must be due to their genetic makeup.

The Friction Ridges Seen in Finger, Palm and Foot Prints