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It can be either. Sometimes they are in their own individual sac, and in other instances they share one amniotic sac.
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How Do Fraternal Twins Occur and Identical Twins Occur?
Fraternal twins (dizygotic twins) are simply two fertilized eggs that are implanted in the uterus at the same time. Identical twins (monozygotic twins) is one fertilized egg that separates into two embryos. In most cases, identical twins share one placenta, but have separate amniotic sacs. In some cases, they have two placentas. In rare cases, they share both the placenta and the amniotic sac.
Do identical or non-identical twins share a placenta?
do identical or non identical twins share the same placenta
What is the genetic difference between identical and non identical twins?
Identical twins are formed by the separation of the same embryo containing same genetic coding. thus the the twins are identical as formed from the same embryo. But this is not the case in the non-identical twins as they are formed from the individual embro each having different genetic coding.
What is the difference between idetical and non idetical twins in the way they are found?
The difference between Identical and Non-Identical twins is that Identical twins share the same placenta and are basically identical to one another. Non-Identical twins do not share the same placenta in the womb and two eggs fertilized at time of conception as opposed to one egg splitting in the case of Identical twins. I think that covers the basics. Hope this has clarified things for you.
Is the DNA in twins the same?
if they share 1 heart then yes they do. but if they have different hearts then they do not
Identical twins are most likely to share a similar prenatal environment if they share the same?
gender schemas
Who would have the most genetic similarities identical twins or fraternal twins?
Identical twins would have the most genetic similarities, since they share the same original 46 chromosomes.
Why do you think identical twins were more alike than fraternal twins?
Fraternal twins share most of their genetic material, by virtue of having the same parents. Identical twins, however, by definition share 100% of their DNA. This means, for example, that identical twins cannot ever be one of each gender, as fraternal twins often are.
Do identical twins share same interest?
no.I have been researching on twins and it has been proven on other websites like ask.com and yahoo answers.com that twins share the same features but not personalitys and interests!
Are rex and rob ryan identical twins?
Yes, Rex and Rob Ryan are identical twins. They both have similar physical features and share the same DNA.
If you have twin and both come out conected do they share the same fingerprints and why?
Conjoined, "Siamese", twins are by definition identical twins. Their fingerprints will be very similar but often not completely identical.
Are cole and Dylan Sprouse fraternal twins?
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