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I am pretty sure because that is how my twins are at the moment that one placenta and two sacs mean identical twins more often than fraternal and more often identical if they are the same sex
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∙ 14y ago
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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?
They are dizygotic. Fraternal twins.
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.
Twins who delevelop in separate amniotic sacs?
They are called: fraternal or dizygotic twins. Twins who develop in one amniotic sac are called identical or monozygotic twins.
How do twins look exactly alike?
They do look different! Even identical twins, with identical DNA, are different. Most have a slight difference in height and weight. Many people have a difficult time telling them apart because they are focusing on the wrong things. If someone looks only at the hair, they may not see that their faces are slightly different.
What has more oxygen air sacs or blood?
air sacs
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?
They are dizygotic. Fraternal twins.
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.
What does diamniotic monochromatic twin pregnancy mean?
It means that the twins share the same placenta but different anemic sacs.
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).
Twins who delevelop in separate amniotic sacs?
They are called: fraternal or dizygotic twins. Twins who develop in one amniotic sac are called identical or monozygotic twins.
If you are an identical twin do you share a bag of fluid inside the mothers womb?
That depends on the type of twins. Fraternal twins usually have separate amniotic sacs. Identical twins usually share the amniotic sac.
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.
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.
How can you tell from an ultrasound if twins are sharing a placenta?
You cannot always tell. Sometimes the fertilised eggs implant very close together and it looks like one placenta. If the babies are in separate sacs there is probably no need to worry. Your doctor should be able to tell you.
Issues if twins have only one placenta?
No. Two placentas indicates dizygotic twins which always has 2 amnions and 2 chorions. This is a common misconception. My own twins are identical, yet they had separate sacs and separate placentas that implanted on polar opposite sides of the uterus. DNA tested have proven their zygosity. Whether identical twins will have their own placentas is dependent upon when the egg split. In my case, the egg probably splip immediately after conception and conception likely took place in the fallopian tube.
How is identical twins created in the mother's womb?
With identical twins, one egg (zygote) from the mother is fertilized by one sperm from the father, and then very early in development the embryo splits and two fetuses grow. Spontaneous division of the zygote into two embryos is not considered to be a hereditary trait, but rather a spontaneous or random event. If the zygote splits very early (in the first 2 days after fertilization) they may develop separate placentas (chorion) and separate sacs (amnion). These are called dichorionic, diamniotic (or 'di/di') twins. While all fraternal twins are 'di/di', this occurs 20 - 30% of the time in identical twins. Most of the time in identical twins the zygote will split after 2 days, resulting in a shared placenta, but two separate sacs. These are called monochorionic, diamniotic ('mono/di') twins.These twins are very similar genetically, and share a single afterbirth. Very occasionally, twins will also share the same sac (fluid cavity). In about 1% of identical twins the splitting occurs late enough to result in both a shared placenta and a shared sac. These are called monochorionic, monoamniotic ('mono/mono') twins.
If you have twins in separate yolk sacs is this good?
yes
