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Answered 2011-06-01 05:54:54

Fraternal twins are not identical, coming from two eggs and two sperm vs monozygotic ("identical") twins who come from one egg and one sperm that splits into two separate embryos.

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What is the difference between fraternal twins and twins?

Ferternal twins don't look alike, but twins do


Are female twins that are not identical called Fraternal or Maternal?

Any set of twins that are not identical (whether it's boys or girls or a combination of the two) are fraternal twins.


How can you tell the difference between fraternal and identical twins?

Identical twins would look the same, fraternal twins could be of different sexes. In the womb, you can easily tell the difference between fraternal and identical twins because if the twins are identical, they will share the same sac. Fraternal twins will have different sacs. You can see this in the ultrasound. After birth, it is often very difficult to tell the difference between the two types of twins because babies often look alike particularly when they are siblings even if they aren't identical genetically. If the twins are fraternal it usually gets easier to tell the difference as they get because they tend to look quite different as they age. Fraternal twins are only siblings while identical twins are genetically identical.


What is the difference between fraternal and identical twins?

identical twins are born at the same time AND look the same l. Fraternal twins are born at the same time but do not look identical..


What is the difference between a fraternal twins and identical twins?

If two (or more) eggs are fertilised and develop together you will get fraternal twins. Identical twins are the result of a single fertilised egg dividing into two embryos.


What is the difference identical and fraternal twins?

Identical twins come from the same fertilized egg; fraternal twins come from 2 fertilized eggs.


What does maternal twins mean?

Nothing. Twins are either identical (from a single ovum), or fraternal (from two ova that implant in the mother's uterus.



What are unidentical twins called?

How do fraternal twins form? Answer one egg from each ovary is fertilized.


What is the diffence between identical twins and fraternal twins?

Identical twins come from one egg and one sperm. Fraternal twins come from two eggs and two sperm.


What is another name for fraternal twins?

Another name for fraternal twins is dizygotic twins.



How can you tell the difference between your DNA and your twins DNA?

There are two types of twins- fraternal and identical. Fraternal twins are only siblings born at the same time. Identical twins started as 1 egg that split in two after being fertilized. The DNA of identical twins is, well.... identical. At one point, they WERE the same person.


Are fraternal twin calves infertile?

It doesn't work that way. A heifer calf is only infertile if she is twinned with a bull calf and if her and that bull calf share the same placental tissues. In most cases such twins are fraternal, but simply stating that fraternal twins versus maternal twins are more prone to infertility than the other is stating falsehoods.


What percentage of twins are fraternal?

There is no precise percentage of fraternal or identical twins but it is estimated that 2/3 of all twins are fraternal where as 1/3 of twins are identical.


What is the name for twins that aren't actually twins?

identical twins are single egg twins. fraternal twins a two egg twins. fraternal


Are fraternal twins never the same sex?

Fraternal twins can be the same sex or opposite sexes. It doesn't matter.


What is the difference between monozygotic and dizygotic twins?

Monozygotic twins are formed from the splitting of a single fertilized ovum, and are identical. Dizygotic twins are formed from two separate fertilized ova, and are genetically different. They are also called fraternal twins.


Are fraternal twins each able to have children?

Yes, fraternal twins are perfectly normal.


Do fraternal twins come from the same egg?

No, identical twins do, but fraternal twins come from 2 separate eggs.


Are fraternal twins identical?

No that's why theyre called fraternal twins. Identical twins are identical (share the exact same genes) while fraternal twins are as similar to each other as normal siblings are.


What are fraternal twins?

Fraternal twins are two siblings that have the same birth day, but do not look identical.


Why are identical twins and fraternal twins not the exact same?

Identical twins are formed from a single egg that splits into two. Fraternal twins are formed from two separate eggs that are both separately fertilized. So identical twins have identical DNA, and fraternal twins do not.


What is the probability of having twins if your dad is a fraternal twin and you are a identical twin and your moms dad is a fraternal twin?

The probability is the same as if you had no history of twins in your family. There is no genetic component with identical twins, it is just something that happens. Fraternal twins occur if a mother "drops" two eggs in one month. Your father being a fraternal twin does not make you "drop" more than one egg in a month and so does not increase your chances of having twins. Your maternal grandfather being a fraternal twin did not effect your mother's ability to drop more than one egg and so did not effect your ability to "drop" more than one egg and so does not increase your ability to have twins.


What is your chances of having twins if you are a female fraternal one?

If You Are A Twin (Or Have Twins In Your Family): If you are a fraternal twin, you have a 1 in 17 Chance of having twins. If you are identical, it doesn't affect your chances, and they remain from 1 in anywhere from 38 - 90, depending on if fertility drugs are used or not. If your mother is a fraternal twin, you may have a higher than average chance of twins. If you father is a twin, it doesn't affect your chances, as fraternal twinning is apparently carried down the maternal line. If your husband is a twin or has twins in his family, it doesn't affect your chances of having twins. If you have a parent that is an identical twin, your chances of having twins yourself are the same as anyone else.


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