Study the following pedigree chart.

The disease shown in the above pedigree chart

The trait may be autosomal dominant or autosomal recessive trait. It cannot be an X-linked recessive trait. The woman in the first generated is affected. If the trait is X-linked recessive, all her sons should be affected but she has a normal son. Moreover, the father of affected woman should be affected which is not the case in the given pedigree chart. The trait cannot be a Y-linked trait because it is seen among females also.