What began as a single fertilized egg has just separated into two distinct eggs. This indicates the formation of ____ twins that has occurred during the ____ period of development.
A) fraternal; zygotic
B) fraternal; embryonic
C) identical; zygotic
D) identical; embryonic

Question

Quizplus · Accepted Answer

When a single fertilized egg separates into two distinct eggs, it results in the formation of identical twins. This separation typically occurs during the zygotic period of development, which is the early stage immediately following fertilization.

What Began as a Single Fertilized Egg Has Just Separated