When twins are dissimilar genetically,they
A) come from the same fertilized egg.
B) come from two different fertilized eggs.
C) have different genetic makeup.
D) come from two different fertilized eggs and have different genetic makeup.

Question

Quizplus · Accepted Answer

When twins are dissimilar genetically, it means they have different genetic makeup, which can only occur if they come from two different fertilized eggs. Therefore, the best choice is D - they come from two different fertilized eggs and have different genetic makeup.

When Twins Are Dissimilar Genetically,they