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Multiple Births
Multiple births happen when two or more fetuses are developed during a pregnancy. Two fetuses, or twins, are common; but eight fetuses, or octuplets, are rare. Premature birth is most likely to happen to babies born from a multiple-birth.
684 Questions
How do much does sperm enter the egg to have twins?
It needs one sperm and one egg.
Very early in the egg's development, the fertilise egg splits into to separate bits that become detached from one another. These develop into two babies which are identical because they came form one original fertilised egg.
What is gravida 2 para 1 set of twins?
Gravida 2 means a woman who has been pregnant twice and para 2 means the number of pregnancies that have progressed to 20 or more weeks at delivery, whether the fetus was born alive or was stillborn.
I had twins. They had twins. Many people have twins. Mary-Kate and Ashley's parents had twins.Mariah Carey had twins. Jennifer Lopez had twins with Marc Anthony.
How many sorts of mirror twins are there?
Strange as it sounds, there are ten possible types of twins. Three of them are dizygotic (fraternal) and seven of them are monozygotic (identical).
Dizygotic twin types:
- Fraternal twins, born of two eggs fertilized at the same time. This is by far the most common type of multiple birth.
- Fraternal half-twins (heteropaternal superfecundation), born of two eggs fertilized at the same time by two different fathers.
- Superfetation, a rare condition in which another egg is released, and then fertilized, while the mother is already pregnant. This results in two fetuses at different stages in their development, sometimes by a month or more.
Monozygotic twin types:
- Identical twins, born from a single zygote (fertilized egg) that then splits, usually within the first week of conception.
- Mirror twins, identical except for having opposite features (including handedness, hair growth, etc.), usually formed from a single zygote that splits sometime after the first week of conception.
- Conjoined twins, born physically linked to each other, believed to result from a single zygote that splits, then partially reattaches during the course of the pregnancy. The earlier they rejoin, the greater the level of interpenetration. These are often referred to as Siamese twins, after a famous example who lived in 19th-century Thailand (then called Siam).
- Parasitic twins (fetus in fetu), a very strange form of conjoined twin in which one of the zygotes fails to develop properly, and instead becomes a living parasite inside the body of the surviving twin.
- Polar body twins, a very rare and not well-understood condition caused by two different sperm somehow fathering the egg after it has already split once; the smaller part of such a split is called the polar body, and is usually discarded as leftover or waste material. Since the resulting twins share the same DNA on the mother's side, they're somewhere between identical and fraternal; which is why until recently they were called semi-identical twins (see below).
- Aneuploidal twins, resulting from a genetic abnormality in the sex-determining (X and Y) chromosomes; it requires that at least one of the parents have an abnormal number of chromosomes, a condition known as aneuploidy.
- Semi-identical twins, a unique variation on polar-body twinning in which two of the father's sperm penetrate the same egg (rather than one to the egg, and one to the egg's polar body). This is the rarest known form of twinning, with only one documented case so far.
The last three (polar body, aneuploidal, and semi-identical twins) are the only forms of monozygotic twinning in which it's possible for the siblings to be of opposing gender. And in all three cases, the unusual conditions which cause them virtually guarantee that at least one, if not both, siblings will have developed some form of aneuploidy themselves.
If you are a twin what are the chances you will have twins too?
It depends on what has caused the twins in your family. Having identical twins is a random event, and so there is no genetic or inheritable cause for that. So if there are identical twins in your family, then you are no more likely than anyone else to have twins.
If, however, you have non-identical twins in your family, then this could be due to hyperovulation, which can be inherited. This is when a woman is more likely to release multiple eggs during her ovulation cycle, and so a man inheriting this gene will not affect his own chance of having twins. It could effect a woman's chances, but it's still not a sure thing.
What side of the family does twins come from?
There really isn't a 'gene' for twins. However, fraternal twins are the result of a woman releasing two eggs at a time. This trait can run in the womens side of the family so there is more chance her daughters will release 2 eggs at a time.
To date there is no indication that identical twins have any genetic markers. All women have a chance of having their eggs split and having identical twins.
According to myth how does the grandmother spider help the twins escape from the giant?
teaches them a phrase that keeps the giants smoke above their eyes
Im a twin could you have twins?
Yes particularly if your first set of twins are fraternal (aka non-identical twins) as these are the type of twins that are said to have a hereditary connection.
What are the chances of having a mentally challenged child?
There is a random chance of any birth producing a defective child but there are some genetic conditions which could mean that EVERY birth will produce a defective child.
Therefore without knowing your circumstances we can not properly answer this question for you.
That you ask it indicates that you are worried and the best person to answer your questions would be a qualified medical practitioner (a Doctor), go and see one.
It's not uncommon that they come before 40 weeks but you can also go full term. There is nothing that says that twins should be delivered earlier than others, it completely varies from pregnancy to pregnancy.
Where are conjoined twins normally joined?
At the hip area, this prompted a pun by a Carnival barker or fan who when the barker remarked the Hilton sisters were joined at the hip ( more or less Back-to-Back) Uncle Bob retorted- Yeah! In the Gunsmoke posture! the analogy, while a little gross is not inaccurate suggesting the back-to-back dueling posture- then count off to 2l and draw!
Who are the longest living conjoined twins?
Conjoined twins Ronnie and Donnie Galyon from Ohio, are the oldest who will be 67 in 2018.
Prior to that, Chang and Eng Bunker were the longest lived known conjoined twins born in Siam (hence, the term) who became naturalized U.S. citizens in North Carolina. They lived to be almost 63 years of age.
Why do you think the myth of the twins had endured for so long?
Passed down from generation to generation
Will you have twins if your mother is a twin and your fathers brothers are twins?
Ok here are the chances of having twins or multiple babies,
1) You the mom are over 45
2)You live in Massachusetts
3)You take fertility drugs or undergo fertility treatments
4)You,your mother, or her mother is a fraternal twin. Skips generations
5)You already had fraternal twins
6)Your Nigerian
7)Your tall or over weight.
Here are the chances of not having twins or multiple babies,
1)You are Hispanic or Asian
2)You are under 25
3)You live in Hawaii
4)Your looking for identical multiple ( I am one for a fact)
~The chances of having triplets or more is 1 in 8100 and odds having quadruplets are 1 in 729,000
How many weeks pregnant before you know if its twins or not?
they should be able to tell right away but sometimes the twin is hidden behind the other one.They can tell right then and there if they give you an internal ultrasound but sometimes the regular ultrasound dont get all the way around the uterus so the twin could be hidden.
How likely is it to have twins?
if you are a twin there is 100% chance that you get pregnant and have twins. even your cousins can have twins if they know that they come from the generation as yours
[added by another user] If you are female and you are a fraternal twin, you are at increased likelihood to conceive twins. If you are an identical twin or male, your chances of having twins are about the same as anyone elses, roughly 1:80 births.
Will you have twins since your grandmother was a twin?
It is possible but it is almost impossible to tell. However, the chances of having twins, if your parents had twins without the use of fertility drugs, is greater than if they only had single births. There are old "wives tales" or "myths" about twins, such as that they usually skip a generation. For instance, your mother had twins, so your children (or another one of your mothers daughters, children) will have twins. There is no scientific basis for this.
How soon can you see twins on ultrasound?
To see twins, it depends what kind of twins you are having. Faternal twins (Two (2)separate eggs that are both fertalized) can be seen on your first ultrasound, as early as 6 weeks or 4 week if your doctor orders a vaginal ultrasound. Identical twins (One (1) egg that has been fertalized by one sperm, but decides to make 2 babies) can be seen when the fetal pole is present which shows as early as 9 weeks. Hope this helps you and CONGRATULATIONS!!!
There are two types of twins. Fraternal twins are produced when two eggs are released and two separate sperm fertilize them. These twins are not identical, although they may still look alike because they are siblings.
Identical twins are produced when one egg is fertilized by one sperm. During the zygote stage, the egg splits into two. This creates two separate embryos and thus the children will be identical copies of each other. The same exact chromosome match.
