Out of all the following statements regarding twins pregnancy, which one is false?

A. The frequencies of monozygotic twins is 1 in 250 Pregnancies

B. Division after formation of the embryonic disk results in conjoined twins

C. Most common type of Dizygotic twins are through superfetation

D. A dichorionic twin pregnancy can also denote monozygotic twins.

Correct Answer: Most common type of Dizygotic twins are through superfetation

Description: Option A,B,D are correct Superfecundation it is the feilization of two or more ova from the same cycle by 2 different sperms(1 cycle & 2 eggs) Most common type of Dizygotic twins are through Superfecundation Superfetation : Very rare in humans. This is mostly a phenomenon seen in cattle. Here 2 eggs of 2 separate cycles are feilised with 2 separate acts of intercourse.

Category: Gynaecology & Obstetrics

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