Semi-Identical-A third Kind Twins
Years long scientists and medical experts thought that there are only two types of twins for human being.They are Identical twins and Fraternal Twins.But recently in Washington,Doctors have found a new type of twins-a third type of twins with with
characters between identical twins and Fraternal twins.Identical twins are those
twins which are due to fertilization of an egg from the mother by two sperms from
the father.And then in the early stage of the development of embryo splits into
two foetuses and grow to give twins which are very similar genetically.In case of
fraternal twins,two sperms cell from the father fertilize two egg cells from the
mother and give two different foetuses which are less similar genetically.But the
semi-identical twins are somewhere between identical twins and fraternal
twins.Doctors found this new case when one of the twins has sexual abnormality
which is ambigous genitalia and doctors considered as harmaphrodite having both
ovarian tissues and testicular tissues.