Write a respond to this classmates discussion post, do not critique their writing just continue the discussion/ conversation.Only use the reference provided. include intext citations where applicable Phenylketonuria Phenylketonuria (PKU) is an autosomal recessive disorder caused by mutation of PAH gene (Braun & Anderson, 2017). PKU irises when there is a deficiency phenylalanine hydroxylase (PAH) […]