<prompt> An affected male infant born to normal parents could be an example of all of the following, except:An Autosomal dominant disorderAn Autosomal recessive disorderA polygenic disorderA veically transmitted disorder  <response>: A i.e. Autosomal dominant disorder Autosomal dominant disease cannot occur in offspring of an unaffected individuals. Because the allele is dominant it will always express phenotypically clinically and hence both parents cant be normal in autosomal dominant disorders even if they have a single abnormal gene. 