Fred and George are identical twins. Ashton and Michael are fraternal twins. Which of the following statements is true?
A) Ashton and Michael have the same genetic makeup.
B) Fred and George have the same genetic makeup.
C) Ashton and Michael are more genetically similar than Fred and George.
D) Fred and George are genetically no more alike than ordinary siblings.

Question

Quizplus · Accepted Answer

Identical twins, like Fred and George, develop from a single fertilized egg that splits into two, resulting in them having the same genetic makeup. Fraternal twins, like Ashton and Michael, develop from two different fertilized eggs and are genetically similar to ordinary siblings, not identical.

Fred and George Are Identical Twins