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The twin gene is in the mother’s body, not the father
You may have noticed that men or women who are twin do not necessarily own twin children. This is because the twin of the newborn depends on a particular gene that exists only in the female body. When a woman produces two eggs, this has a genetic reason. According to studies, most women do not have this ability, and two ovules twins are seen only in women who have a gene for producing two oocytes.
