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:
Pontoon Design: There are three primary types of pontoon designs used on current pontoon boats. One is the foam filled (U) shaped pontoon, another is the round baffled single chambered pontoon, and then there is the single round pontoon with several airtight individual compartments.
A pontoon bridge (or ponton bridge), also known as a floating bridge, uses floats or shallow-draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load they can carry. Most pontoon bridges are temporary, used in wartime and civil emergencies.