Fraternal twins are __________ similar genetically than are regular, non-twin siblings.
A) much more
B) no more
C) slightly more
D) much less

Question

Quizplus · Accepted Answer

Fraternal twins are no more similar genetically than regular, non-twin siblings. Fraternal twins come from two separate eggs fertilized by two separate sperm, whereas regular siblings come from one egg fertilized by one sperm. Therefore, fraternal twins share approximately 50% of their genetic material like any other siblings, while identical twins share nearly 100% of their genetic material.

Fraternal Twins Are __________ Similar Genetically Than Are Regular, Non-Twin