Represented below is the inheritance pattern of a certain type of trait in humans. Which one of the following conditions could be an example of this pattern?

Which of these is not a Mendelian disorder?

Give scientific reasons : The product of phenylalanine catabolism excreted in the urine in phenylketonuria.
 

Haemolytic jaundice is caused due to a dominant gene but only $10\%$ of the people actually develop the disease. A heterozygous man marries a homozygous normal woman; what proportion of the children would be expected to develop the haemolytic disease

An example of a disease of molecular mutation is