If a single, 23X sperm fertilizes an ovum that lacks a nucleus, and its chromosomes double to yield a 46XX karyotype, what is the outcome?
A) A normal female
B) A partial mole
C) An ovarian teratoma
D) A complete mole
E) A normal placenta but no fetus

Question

Quizplus · Accepted Answer

A complete mole results from the fertilization of an ovum that lacks a nucleus by a single sperm, which then duplicates its chromosomes, leading to a 46XX karyotype. This results in a gestational trophoblastic disease characterized by the proliferation of placental tissue and the absence of a viable fetus.

If a Single, 23X Sperm Fertilizes an Ovum That Lacks