Identical twins are formed when one fertilized eggs splits. Non-identical twins are formed when two separate eggs are fertilized.
do identical or non identical twins share the same placenta
Non identical twins.
In identical twins, the development of the placenta is usually shared, meaning they both share one placenta. In non-identical twins, each twin typically has their own separate placenta.
Fraternal twins
Fraternal twins
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.
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
the egg divides
The reason why some twins are identical and some are not starts in utero. Identical twins occur when one egg is fertilized and it splits to create two embryos. Nonidentical twins come from different fertilized eggs.
Non-identical (fraternal) twins are born when two separate eggs are fertilized by two separate sperm. This results in siblings with different genetic makeups and physical characteristics. Non-identical twins can be the same sex or different sexes.