<prompt> Which of the following disease is X- linked?ThalassemiaColor blindnessSickle cell anemiaGalactosemia  <response>: Ans. b Color blindnessRef: Robbins 9th ed and NCERTThe most common cause of color blindness is an inherited fault in the development of one or more of the three sets of color sensing cones in the eye. Males are more likely to be color blind than females, as the gene responsible for the most common forms of color blindness are on the X chromosome. 