Best Answer: Chordata refers to the presence of a nerve chord running from the head to the back, which may or may not be accompanied by vertebrae. All animals with backbones are members of the chordate phylum, but not all chordates have bones (lancelets and tunicates are chordates lacking real bones).
Angelman syndrome (AS) is a genetic disorder that causes developmental delay, intellectual disability, speech problems, seizures (epilepsy), and problems with movement and balance (ataxia).ngelman syndrome (AS) is a severe neurodevelopmental disorder caused by maternal deficiency of the imprinted gene UBE3A. Individuals with AS suffer from intellectual disability, speech impairment, and motor dysfunction. Currently there is no cure for the disease.
What is HPS? Hermansky-Pudlak Syndrome (HPS) is a genetic metabolic disorder which causes albinism, visual impairment, and a platelet dysfunction with prolonged bleeding. In some genetic types of HPS there is a lysosomal accumulation of ceriod lipofusion. In other words, there is accumulation in the cells of a substance presently known as âceriodâ. Ceroid is the name given to this substance because it means âwax likeâ.