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Identical twins are formed when a fertilized egg splits in two and separates, creating two embryos. Fraternal twins form when two separate eggs are fertilized.

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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.


Why are identical twins identical and fraternal twins are not?

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 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.


Are the girl and boy twins identical or fraternal"?

The girl and boy twins are fraternal, meaning they are not identical.


Why can fraternal twins be different genders but identical twins are are the same gender?

Identical Twins are the result of a single fertilized egg spliting in two producing two genetically identical children. Fraternal twins are the result of the mother producing two eggs each fertilized by a different sperm from the father. This can result in opposite sex twins.


Which is more common fraternal twins or identical twins?

Fraternal twins are more popular.


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

Female twins that are not identical are called fraternal twins. Fraternal twins occur when two separate eggs are fertilized by two separate sperm. Maternal twins refer to twins that share the same mother but can include both identical and fraternal twins.


Why are Identical and fraternal twins similar?

They are twins!


What is the difference fraternal and identical twins?

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


Why are the twins identical?

Twins are not necessarily identical. They can be fraternal as well. Identical twins result when one fertilized egg splits in two. Fraternal twins result from two fertilized eggs.


What is identical and what is fraternal?

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


Are mia hamms twins fraternal or identical?

identical