Can DNA paternity testing distinguish who is the biological father if the tested man has an identical twin brother?
No. Identical twins share are the product of one egg and on sperm which after fertilization the embryo will begin to grow and then split into two fetuses. Identical twins have 100% of their genetic markers in common; therefore, no genetic test can distinguish which of them is the true biological father. If either is tested and is not excluded, the other twin is also included as the potential father. Other non genetic factors must be considered by the court in determining the paternity of the child in question.
Related Questions
- The alleged father is deceased, what options are available for DNA paternity testing to determine if he was the childs biological father?
- Would a man agree to hand over 20% to 40% of his take home pay, if not more, if he knew in advance that he was not the biological father?
- Can DNA paternity testing distinguish who is the biological father if the tested man has an identical twin brother?
