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I always see them the same sex. Can they be one of each?

2006-10-27 06:24:39 · 32 answers · asked by ♥Brown Eyed Girl ♥ 5 in Pregnancy & Parenting Other - Pregnancy & Parenting

32 answers

no, conjoined twins are always identical. Male and female twins are fraternal.

You can only have identical twins that are conjoined because the conjoining happens in the early stages of pregnancy. Identical twins come from the same egg.
Fraternal twins come from different eggs and can be either of the two sexes. They have separate amniotic sacs and therefore cannot be conjoined.

2006-10-27 06:26:13 · answer #1 · answered by Anonymous · 7 0

There was a case of a male - female conjoined twins in 1957.

2015-10-18 18:30:38 · answer #2 · answered by steve 1 · 0 0

Conjoined Twins Sex

2016-10-01 00:45:25 · answer #3 · answered by ? 4 · 0 0

All conjoined twins are identical. However I have heard of a case where the twins were separated at an early age and, because of the position of the join, one had kept his male genitalia and was raised as a male, the other was reassigned and raised as a female because he didn't have genitalia (he was given hormonal treatment from a young age to give him female attributes as he grew up).

2015-06-09 21:27:17 · answer #4 · answered by Diana 1 · 1 1

If twins are conjoined that means they are identical twins. Identical twins come from one egg that just happens to split into two babies and sometimes it doesnt split all of the way. Conjoined twins will never be one of each sex because they are identical and not fraternal. Fraternal twins come from two different eggs and have their own sacs. Identical twins will always be of the same sex.

2006-10-27 06:30:35 · answer #5 · answered by shanndawhit 2 · 4 2

conjoined twins male female

2016-01-31 06:09:10 · answer #6 · answered by Diann 4 · 1 0

Hi. Conjoined twins are always formed by a single egg with identical DNA, so I don't believe it's possible for two different sexes.

2006-10-27 06:28:03 · answer #7 · answered by Cirric 7 · 3 1

This Site Might Help You.

RE:
Can conjoined twins ever be one male and one female?
I always see them the same sex. Can they be one of each?

2015-08-18 02:15:02 · answer #8 · answered by Anonymous · 0 1

Not in the true sense of conjoined. To be conjoined they would be of the same egg and sperm that was split during its early divisions, this split of course being incomplete would be of the same DNA Strand and having the same chromosomes dictating male and female attributes.

If two fertilized eggs were joined and grew together it would be possible to have twins joined together at that poiont, but they would not be conjoined, they would be fraternal twins that were joined together. and in that case they could be any combination of sexes.

2006-10-27 06:30:53 · answer #9 · answered by trooperthorntton 2 · 2 1

No. Identical twins must be the same sex. They result from one fertilized egg dividing into two genetically identical embryos. Conjoined twins are simply identical twins in which the division was incomplete.

2006-10-27 10:22:59 · answer #10 · answered by mockingbird 7 · 0 1

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