Which of the following is true of multiple fetuses?
A) Dizygotic twins are a result of a single egg getting fertilized.
B) Monozygotic twins are never the same sex, whereas dizygotic twins are always the same sex.
C) Monozygotic twins represent individuals with differing genetic fingerprints.
D) Dizygotic twins are always identical.
E) Monozygotic twins result when the fertilized and rapidly dividing egg splits into two within days after conception.

Question

Quizplus · Accepted Answer

Monozygotic twins result from the fertilized egg dividing into two within days after conception, creating two genetically identical embryos. Dizygotic twins, on the other hand, result from the fertilization of two separate eggs by two separate sperm, creating two genetically unique embryos. Therefore, options A, B, C, and D are incorrect.

Which of the Following Is True of Multiple Fetuses