Re: Solve a disagreement. . . identical or fraternal

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The other thing was that the other person in the room agreed with her.

I went through IVF a little over a year ago, so I like to think I'm a bit of an expert on reproduction, but when two people question me, I guess I start questioning myself.

The one girl was like. . .yeah, but the sex isn't determined until later. . . and I'm like "huh?" I know that it doesn't show up until later, but the sper is either X or Y so . . well anyway, now I'm rambling but thanks, I'll have to email her this.

:)

--
Christine

>You are very right!  LOL
>
>You can only be an identical twin if you are the same sex.
>
>An identical twin comes from the same egg that just divides into two sharing
>the same sac!  Natures way of cloning!
>
>Fraternal twins come from two separate eggs, each have their own placentas
>and sacs.
>
>:o)
>
>Jennifer
>Not a Dr.  Just someone with some common sense!

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