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How do you get identical and non identical twins?

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2010-05-22 08:28:11
2010-05-22 08:28:11

Identical twins are formed when one fertilized eggs splits. Non-identical twins are formed when two separate eggs are fertilized.

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Related Questions


do identical or non identical twins share the same placenta


identical twins have the same genes from the same parents. Non identical twins have different genes.


Some twins are identical twins, other are not identical twins. Identical twins develop from a single fertilized egg that subsequently splits into two zygotes. Non-identical twins, also called fraternal twins, develop from two different fertilized eggs.


With identical twins, a fertilized egg splits in two. With non-identical twins, more than one egg is fertilized.


They sometime twins have different chromosome from there parent.


non identical twins are made when occasionally during the woman's period she lets two eggs out at the same time, which are fertilised by two sperms to form 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.


Identical twins are formed from the same fertilized zygote ( which undergoes division in some later period of pregnancy) while non identical twins are formed from two different zygotes


Identical twins and non develop diffferently. Identical twins eggs split in two inside the womb while a non-identical twin is from a womb having two eggs


Identical twins have to same cord but non-identical do not


Identicals are exactly the same non identicals are just regular twins that are not nessecarily similar.


3 identical twins and 55million non-identical....hope it will help


The difference between Identical and Non-Identical twins is that Identical twins share the same placenta and are basically identical to one another. Non-Identical twins do not share the same placenta in the womb and two eggs fertilized at time of conception as opposed to one egg splitting in the case of Identical twins. I think that covers the basics. Hope this has clarified things for you.


Non-identical twins are represented on a pedigree chart with a sign thata looks like this: / or called a slash!!! ;)


Identical twins form when fertilized eggs split. non identical twins form when separate eggs are fertilized at different times. From AU Yahoo Answers


No, non-identical twins are fraternal twins. They are created when two eggs are fertilized at the same time and become embryos. Identical twins are when a fertilized egg splits into two on its own.


Non-identical twins are when 2 sperm cells fertilize two different eggs during the same pregnancy.


Paternal Non-Identical fraternal twins


Identical TwinsSometimes, after fertilisation, the fertilised ovum splits and divides into two balls of cells. Twins formed in this way are identical. They develop from the same ovum.Non-identical TwinsSometimes a woman's ovaries release two or more ova at the same time. If they all become fertilised, they all develop into babies. Twins formed in this way are non-identical. They develop from different ova fertilised by different sperms.


Non identical twins are formed when the mother releases two eggs and both those eggs are fertilised. hope this helps :)


No. They have to come from the same egg and sperm to have the same DNA (and be identical). Fraternal twins are non identical twins and come from two separate eggs.



No, however it can increase your chances of having fraternal (non-identical) twins by as much as 1 in 5! No, however it can increase your chances of having fraternal (non-identical) twins by as much as 1 in 5!


identical twins came from the same fertilized egg that split while fraternal twins came from 2 different fertilized eggs.


No. Identical twins are identical. Fraternal twins are not.



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