There are two types of twins. Fraternal twins are produced when two eggs are released and two separate sperm fertilize them. These twins are not identical, although they may still look alike because they are siblings.
Identical twins are produced when one egg is fertilized by one sperm. During the zygote stage, the egg splits into two. This creates two separate embryos and thus the children will be identical copies of each other. The same exact chromosome match.
Its possible. My great-uncle and great-aunt were twins. I could have been a twin, but I am not.
Buildings
A set of seven twins is called septuplets.
No there were no twins reported.
The Box Set - Cocteau Twins - was created in 1991.
The same as when you had the first set of identical twins.
Set - Thompson Twins album - was created in 1982-02.
Yes, I have two sets of twins, and one set of triplets.
A female mammal causes twins.
Yes. I own a set of twins. I believe that twins happen more often than in humans, but still uncommon. I can't remember where I read this.
The older set of twins were Bert and Nan, the younger twins were Freddie and Flossie.
Conjoined twins cannot be bred. This condition is not genetic.A set of male conjoined twins fathering children with a set of female conjoined twins will almost certainly produce children who are not even twins at all.