Answer from: Maria José Mendiola, MD, MSc in Human Genetics, MSc in Science Communication, ObGyn
In this case of the autosomal dominant gene mutations, a person with an autosomal dominant disorder in this case the father that has the disease, if it is dominant, it has a disease and on the other hand, for example, the recessive disorders we don’t have symptoms and we could pass on through the family and one or four of our children could express the recessivenesses but in this case, a person with an autosomal disorder dominant disorder, the father or the mother has a 50% of chance of having an affected child with one mutated gene, the dominant gene and a 50% chance of having an affected child with two normal genes or the recessive genes. So, in this case, we only need one copy to express the disease.
