Twin Zygosity.

A Twin Zygosity Test Confirms Whether Twins Are Identical Or Fraternal
The purpose of a twin zygosity test is to determine with certainty as to whether twins are alike or fraternal.
Often times, identical twins may show physical characteristics that are different and may be misunderstood as fraternal twins.
On the other hand, same sex fraternal twins may look alike and considered as identical twins.

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At the time of birth, a doctor can differentiate identical and fraternal twins by seeing whether the babies are sharing a placenta or if there two different placentas. Identical twins share one placenta, whereas fraternal twins will be in two different placentas. However, in certain situations it may appear that identical twins are having different placentas and fraternal twins are sharing a placenta.

There are a number of reasons for considering this test.
Some of the reasons are:
Inaccuracy or loss of birth records.
Doubts that arise, despite the original zygosity test, due to the emergence of different physical traits when the twins grow up.
If the placentas of the twins are discarded or damaged, before a twin zygosity test, because of a health-threatening or an emergency delivery experience.Personal curiosity.

There is also a health advantage angle to conducting this test. If one of the siblings requires a tissue or an organ transplant, the results of this test may be helpful in deciding whether the other sibling could be a donor or not.

In a twin zygosity test, the DNA profiles of the twins are compared with each other to find out if they match.
The DNA profiles of identical twins will match exactly.
It is a simple procedure that can be carried out sometime after the birth of the babies or later in life when the features emerge. It involves collection of cheek or Buccal swab from each baby, extracting the DNA and analysis and comparison.

A physician may be able to find out whether the twins are fraternal or identical by doing an ultrasound examination of the placenta.
It is also possible to determine zygosity through a pathological examination of the placenta after the babies are born.
However, studies indicate that these methods are not accurate and scientists, therefore, recommend a twin zygosity test.

Twins that are identical are formed from one zygote, a fertilized egg.
Generally, the zygote develops to form one embryo.
Sometimes, it splits and forms two embryos. The identical twins will have the same DNA profile because they come from one sperm and one egg.

When two different eggs in a mother's womb are fertilized by two separate sperms, fraternal twins are formed.
The DNA profiles of fraternal twins will not be exactly the same, though they can be expected to share some of the DNA from their parents.

Whatever be your reason for testing twin zygosity, we at Paternity Center offer the best solution to you through our offices in more than 2,500 plus locations, including that in the US as well as outside the country.
When you are dealing with Paternity Center for your
DNA testing requirements, you can rest assured as you will always receive the best services.
Fully Licensed.
Paternity Center™ is fully licensed we provide 100% accurate DNA test result, these results cannot be disputed and can be used in a court of law.
We provide DNA testing all over the world even if you and the over tested party are in different state or country.
We offer complete confidentiality with testing all testing and results are for your eyes only.
Ways to collect samples:By Paternity Center™
Self-made cheek swab, FTA Classic Card, Whole Blood
Cord Blood, Bloodstains, Sperm (Semen), Toenail or Fingernail Clippings,
Amniotic Fluid, Chorionic Villus Sampling, Fetal Tissue ,Chewed Chewing Gum 
Cigarette Butts, Hard Candy, Used Condom
Semen Stains On Clothing, Used Tampons or Used Feminine Pads, Sweaty Hat or Ball Cap
Hocked Loogie (spit), Plucked Hair, Q-tips with earwax
Snotty Kleenexes, Urine, Electric Razor Debris.
If you have questions or would like to discuss any of the tests listed above, feel free to give us a call.

Fees and Methods of Payment:
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