Human Anatomy and Physiology

Are all twins identical?


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Answered 2008-12-07 22:02:10

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


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Some people think identical means all the same. It does. They call identical twins identical twins because the are almost identical. All finger prints are different.

Identical twins are created when 1 eggs splits into 2. Conjoined twins are the result of identical twins not separating all the way.

No, their twins are all fraternal

No. All identical twins are the same sex. Judith and Hamnet were opposite sexes, and so were fraternal twins.

No. Identical twins are born anytime. No specific month.

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.

In identical twins, the DNA is identical, which is what makes them identical. In Fraternal twins it is not.

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.

Twins are identical because they come from the same egg.

If they were not then they would not be called identical twins!

Yes, they are identical twins, monozygotic twins, born ten minutes apart. They share the same genome, they are identical genetically, they are identical twins.

Identical twins look precisely "identical" - they came from the same egg. Fraternal twins (which can be the same sex or opposite sexes) do not look all that much alike, and came from two separate eggs.

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.

All natural identical twins.

Identical twins. Although horses sometimes have twins I'm not sure if they have identical twins.

Yes. Fraternal twins don't look alike at all. Identical, meaning to look the same, are well, identical.

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.

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

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.

i personally know a set of identical twins. BOTH of them had twins. i don't know if their twins were identical too.

Identical twins have identical genomes. This means several physical traits are expressed in a similar way. This is because they are genetically identical. This is why identical twins have the same eye color

No. By definition, identical twins are the same sex.

the chances of having identical twins are about 1 in 300.

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