Which of the following accurately describes the way in which monozygotic twins occur?
A) The mother's body releases multiple eggs, two or more of which are fertilized.
B) The mother's body releases one egg, conceives, and then releases another egg in a later ovulation cycle.
C) The egg is fertilized by a single sperm and then splits completely into two separate zygotes.
D) The mother uses fertility drugs.

Question

Quizplus · Accepted Answer

Monozygotic (identical) twins occur when a single egg is fertilized by a single sperm and the resulting zygote splits into two separate embryos, each with its own amniotic sac and placenta. This is known as embryo twinning.

Which of the Following Accurately Describes the Way in Which