Children born from the same pregnancy. Twins can result from either a single zygote (monozygotic, or identical twins) or from two, separately-fertilized egg cells (dizygotic, or fraternal twins).
Questions tagged [twins]
31 questions
67
votes
2 answers
Can a woman give birth to twins with different fathers?
Is it possible for a woman to conceive from two different men and give birth to half-siblings?
Probably
- 2,438
- 4
- 20
- 38
4
votes
1 answer
Identical twins' biological sexes
Can identical twins have different genders (as in biological sex)?
I thought they should have absolutely the same genes. If they can, what caused it? I'd assume it MAY be because of errors in cellular division at conception.
Thank you.
Wajih Aziza
- 85
- 6
3
votes
1 answer
Is there a limit to twinning?
Can developing twins further divide and subdivide and become identical quadruplets or octuplets or...?
Can twinning be induced, either in utero or in vitro?
Might it be possible to just keep harvesting a few cells off the original clump…
Outboxman
- 81
- 3
2
votes
0 answers
Do the eggs of fraternal twins come from the same ovary?
With fraternal twins two matured eggs are released and fusion of the two with sperms result in formation of these fraternal twins. Then do the two matured eggs come from one ovary or both the ovaries at the same time?
Lily Twilight
- 21
- 1
- 3
1
vote
1 answer
Twin with one boy and one girl with single placenta
I am 27,male and just become father of twins.
One baby boy and one baby girl.
According to my wife’s medical report both of the babies were sharing a single placenta.
I am not an expert in medical science but through internet I have read that the…
0
votes
1 answer
Is "Cisternal Twins" an actual classification of twin types and if so, describe it
I always assumed my brother and I were identical twins. Now my mother, in her eighties, says we are cisternal twins, but I cannot find any references on the matter. Is there such a thing? If so, what traits make them so?
appended: also, we've been…
Riverborne
- 1
- 2
0
votes
1 answer
How common are boy, girl twins?
In the human population, if you meet someone how likely are they to be a twin with someone of opposite sex?
That includes non-twins, not just people who are twins.
Haydee
- 19
- 1