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Genetic testing is the only way to positively identify what type of twins you are having.
Identical or monozygotic (MZ) twins occur when a single egg is fertilized to form one zygote (hence, "monozygotic") which then divides into two separate embryos.
Half-identical or semi-identical twins (also referred to as "half twins") are the result of a very rare form of twinning in which the twins inherit exactly the same genes from their mother but different genes from their father.
Fraternal or dizygotic (DZ) twins (also referred to as "non-identical twins" and in cases of females, occasionally sororal twins) usually occur when two fertilized eggs are implanted in the uterus wall at the same time. When two eggs are independently fertilized by two different sperm cells, fraternal twins result.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agowhen you go for your altrasound the doctor will rub on your belly and see the heart beat and the body parts and if he sees two hearts then you know you have twins.
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A couple has twins. One is a boy and one is a girl. How do you know what kind of twins they are?
they are fraternal twins because they do not have the same dna
How do you know the sex of twins and what kind?
An Ultrasound can be done to find out.
How do you know what kind of twins are when one is a girl and one is a boy?
Different gender twins will automatically be fraternal, meaning they are both from separate eggs and separate sperm. Identical twins are formed from the splitting of one fertilized egg.
What are other known names for the constellations Gemini?
one i know of is "the twins", but that's kind of obvious.... sorry if I'm wasting Ur time.
Will Haley matin have twins?
HALEY MARTIN will have twins the name is familiar its in her family for her to have twins it could be her sister but i know its haley..
Does Jason know that Courtney and Ali are twins on the series Pretty Little Liars?
In the books, Jason DiLaurentis does know. He is closest to Courtney out of the twins
Is Lady Gaga pregnant with twins?
She is pregnant, but doesn't know if it's with twins yet though.
What are the release dates for Two of a Kind - 1998 Peeping Twins 1-10?
Two of a Kind - 1998 Peeping Twins 1-10 was released on: USA: 27 November 1998
What kind of tourture would they did they to twins in the concentration camps?
The torture methods that they used on the twins in war concentration camps was very brutal. They used to sew (stitch) the twins together to see if they could survive as Siamese twins.
How do you know if your having fraternal twins?
A doctor can tell you or when you give birth to them you would know. Fraternal twins is two separate eggs from the ovaries get fertilised.
What are the odds of having twins twice?
From what i know, if your twins are identical then you have no increased chance of having twins a second time. If your twins are fraternal, you are twice as likely to have twins again because fraternal twins are the result of more than egg being released and that is a genetic trate.
How do you know if two twins are identical or just fraternal twins that look a lot alike?
(Person that asked the question)-Once twins are born, and old enough to determine whether they are identical or fraternal, how do you know if they are identical, or just fraternal twins that look identical? I was just curious.
