PKU and the other causes of hyperphenylalaninemia are inherited in a recessive fashion. This means an affected person inherited two traits for the disorder (e.s., one from each parent). A person with one trait for the disorder, is called a 'carrier' for PKU. Carriers do not have symptoms of the disorder. SYMPTOMS:
Last but certainly not least, aluminum pontoon boats are the most common type of pontoon boat on the market. The majority of major pontoon boat manufacturers make their pontoons using aluminum as well. Unlike steel, aluminum is non-corrosive, meaning that the pontoons wonât rust over time just from being exposed to moisture.
The 50â²sâ¦. The beginning of what is now known as the modern Pontoon boat was created by Ambrose Weeres in 1951. At that time, Weeres was asked by a friend to create a platform out of tubes and oil barrels that would float in water. His initial boat was basically a plywood sheet secured to 55-gallon steel drums.