Six fingers, which belong to recessive inheritance, will not be different because of the sex of the baby on the autosome. For example, the genetic gene of six fingers is a, and no six fingers are a; Only if the genetic genes in the biological chain are all A, that is, aa, will they be six fingers. As long as a appears, it is not six fingers. Girls may be Aa or Aa. If the girl's genetic gene is AA, there is a 50% chance that the baby born will have six fingers. If the girl's genetic gene is AA, your baby is not six fingers. As long as you go to the hospital to check that the girl is Aa, it is impossible to inherit. If a girl is tested as AA, it is possible to inherit it.