<prompt> Which of the following disease is transmitted as an X-Iinked inheritance?PhenylketonuriaAlpos syndromeMyotonic dystrophySpinal muscular atrophy  <response>: Robbins and Cotran pathologic basis of disease South Asia edition. alporys syndrome is an d linked dominant disorder having mutation in alpha 5 chain of type 4 collagen located on x chromosome. phenylketonuria -is an autosomal recessive disorder . myotonic dystrophy - autosomal dominant. spinal cord atrophy-autosomal recessive. 