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Fraternal twins always have two. About 1% of identical twins share an amniotic sack. 99% will each have their own sack.

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9y ago

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Twins who delevelop in separate amniotic sacs?

Twins who develop in separate amniotic sacs are known as dizygotic or fraternal twins. This means they were conceived from two separate eggs fertilized by two different sperm cells. Dizygotic twins can have different genetic makeup and are no more similar than siblings born at different times.


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.


Your friend is pregnant with twins they r in two different sacs and share a placenta and one is a boy and one is a girl?

Your friend is expecting fraternal twins, which means they developed from two separate eggs fertilized by two different sperm. In this case, one twin is male and the other is female, sharing one placenta but each having their own amniotic sac. This scenario is not uncommon among twin pregnancies.


How many sets of amniotic fluid do you have?

I'm not sure what you mean by 'sets' of amniotic fluid. However the baby is in one sac, which is filled with the fluid. What made you ask this question? Often when a womens waters break, the fluid behind or above the baby my be stopped from flowing out due to the babys position, or if the waters break above the baby, then the amniotic sac may still be intact around its head.


Who is responsible for sex determination in humans the male or female?

When twins are the result of two eggs being fertilized at the same time (non identical twins) there is some evidence to show that there is a genetic basis for this kind of twins. However, it is only their mother that has any effect on the chances of having non identical twins; there is no known mechanism for a father to cause the release of more than one ovum When twins are the result of the zygote splitting into two embryos (identical twins) then this is considered a random act nobody is responsible.

Related Questions

Do twins have one amniotic sack or two?

If you mean identical twins, they can be in one sac (1) or each in their own sac (2). As for fraternal twins, they each have their own sacs (2).


Do identical twins share the same amniotic sac?

It can be either. Sometimes they are in their own individual sac, and in other instances they share one amniotic sac.


Twins who delevelop in separate amniotic sacs?

Twins who develop in separate amniotic sacs are known as dizygotic or fraternal twins. This means they were conceived from two separate eggs fertilized by two different sperm cells. Dizygotic twins can have different genetic makeup and are no more similar than siblings born at different times.


Do twins share one placenta during pregnancy?

Yes, twins can share one placenta during pregnancy. This occurs when identical twins develop from a single fertilized egg that splits into two embryos. In this case, the twins will share a single placenta and may also share an amniotic sac.


Can a woman have 2 amniotic sacs?

Yes, a woman can have two amniotic sacs, which typically occurs in the case of a multiple pregnancy, such as twins. Each fetus can develop in its own amniotic sac, a condition known as dichorionic-diamniotic twins. This situation allows each fetus to have its own space and fluid, reducing the risk of complications associated with shared sacs. However, not all twins will have separate sacs; some may share one, leading to different classifications of twin pregnancies.


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 you do DNA testing for alledged father and one child?

Yes, you can do DNA testing for an alleged father both before the baby is born and after. I will say however that doing the DNA testing before the baby is born is dangerous because the needle used to collect the amniotic fluid penetrates the amniotic sack.


Scan showed baby and yolk sack. Could it be twins?

Not unless there was more than one baby. It is common to see both yolk sack and baby until the placenta forms but if there are not 2 separate heart beats then there is probably only one baby.


Who were first the conjoined twins?

No one knows. conjoined twins have been around as long as humans have, more than one million years.The first famous confirmed case of conjoined twins were Chang and Eng Bunker.


Your friend is pregnant with twins they r in two different sacs and share a placenta and one is a boy and one is a girl?

Your friend is expecting fraternal twins, which means they developed from two separate eggs fertilized by two different sperm. In this case, one twin is male and the other is female, sharing one placenta but each having their own amniotic sac. This scenario is not uncommon among twin pregnancies.


What is a sack chaser?

A sack chaser is one who hangs out with the person who has the most dope


How many babies can a tapir have?

they usually have one, sometimes twins, so I suppose they're a bit like humans that way