<prompt> Find the disease by analysing pedigree chart.Sickle cell anaemiaDiabetes insipidusHunter syndromeCrouzon syndrome  <response>: Rule of dominance - If the child is diseased, one of the parent must be diseased.Rule of X-linked - Father never transmits to son.In the image - Father transmits to son.Crouzon syndrome is autosomal dominant. 