<prompt> Which of the following is an X-linked dominant disorder?Vitamin D resistant ricketsFamilial hypercholesterolemiaRed green color blindnessAchondroplasia  <response>: Ref: Robbins Pathology 9th ed. pg. 142Vitamin D resistant ricketsPHEX gene. X linked dominantFamilial hypercholesterolemiaAutosomal recessiveRed green colour blindnessX linked recessiveAchondroplasiaAutosomal dominant 