Florence Addo-Gerth, who is from Ghana, said the older twin looks like his white German father, while the younger twin looks more like she does, ABC News reported Tuesday.

Scientists, however, said the combination is not as rare as people might think. Dr. Melissa Fries, director of genetics and fetal medicine at Washington Hospital Center in the District of Colombia, told U.S. television network there have been a handful of similar cases in the past three years.

Lawrence Balter, professor of applied psychology at New York University, noted fraternal twins are just two children born at the same time.