At what point in cell division is a chromosome lost so that, ...

[Hungry!]

At what point in cell division is a chromosome lost so that, after fertilization with a normal gamete, the result is an embryo with 45, X?

I.    an error in anaphase I
II.    an error in anaphase II
III.    an error of the first postfertilization mitosis
IV.    an error in pairing

A) I or II only
B) II or IV only
C) III or IV only
D) I, II, or III only
E) I, II, III, or IV

[camila]

100% it's E, don't forget to gimmi a thumbs up

[Hungry!]

Thanks so much, you were right on.