For example, two eggs were fertilized, but one split like to make identical twins?
Does anyone know of a set of triplets where this has happened?
2007-06-10 12:50:19 · 10 answers · asked by Caro 2 in Science & Mathematics ➔ Biology
For example, two eggs were fertilized, but one split like to make identical twins?
Does anyone know of a set of triplets where this has happened?
Edit: Thanks to everyone who answered! For anyone interested, the technical term is "polyzygotic birth"
2007-06-10 13:40:33 · update #1
It can happen, I have heard of a family on Discovery Health that had quadruplets, two identical girls and two identical boys, because both eggs split. It is very rare.
2007-06-10 12:55:21 · answer #1 · answered by Anonymous · 0⤊ 0⤋
This is how most triplets are. Where one fertilized egg of a set of non identical twins splits.
2007-06-10 20:25:36 · answer #2 · answered by Labsci 7 · 1⤊ 0⤋
the situation you depict in your answer is called multifetation by triplets.
They do not necesarily come from the same fertilized egg,,,
The case you offer is that, of a couple of monozygotic twins (true twins) that share the same amniotic membrane, the same placenta, and placental villosities, have the same genetic map, same gender , and there es of course, a different sibling which is the product of the fertilization of a different ovum....nothing extraordinary nor uncommon about it.
True monozygotic (same ovum) twins and a sibling from diffferent ovum,were born in your example,,and because of the very small genetic differences, the one that does not look like them, is simply a brother (sibling) not a twin....It just means that the mother had ovulated two or three cells at the same time.... I wouldnt be surprised...remember..I suggest they are two true twins, and a normal sibling (brother or sister)
2007-06-16 04:47:43 · answer #3 · answered by Sehr_Klug 50 6 · 0⤊ 0⤋
Yes, it is possible. I knew a set of triplets; two boys and a girl. The boys were identical.
2007-06-16 08:52:41 · answer #4 · answered by goldilocks 2 · 0⤊ 0⤋
Yes that is possible. I used to teach 3 such boys, the two were identical and the third simply ressembled them as a brother often does.
2007-06-10 19:55:03 · answer #5 · answered by lizzie 5 · 1⤊ 0⤋
Yes.
Two fertilized eggs, and one of them splits into identical twins. =)
2007-06-10 19:57:19 · answer #6 · answered by Wen 1 · 1⤊ 0⤋
yes some of my friends are triplets two of them are idientical and the third is not.yes this can happen to triplets
2007-06-17 12:41:14 · answer #7 · answered by samanatha 2 · 0⤊ 0⤋
Most triplets are of this type.
2007-06-18 17:50:45 · answer #8 · answered by wheelintheditch 3 · 0⤊ 0⤋
I don't know of a case, but I recall discussing this in class, and yes, it does happen.
2007-06-10 19:57:16 · answer #9 · answered by Craig B 1 · 0⤊ 0⤋
It's logical
2007-06-17 19:13:21 · answer #10 · answered by Mandy 2 · 0⤊ 0⤋