31. Color blindness involves more than fifty different genes.32. People lacking the three types of photopigments are said to have complete color blindness or achromatopsia. 33. Color blindness very rarely means complete monochromatism.34. A female colleague had an uncommon form of color blindness which comes with high sensitivity to light. 35. There are various tests for color blindness . 36. In the most common form of color blindness , deuteranopes have difficulty discriminating between red and green color. 37. Grant, however, had been turned down for pilot training during World War II because of color blindness . 38. House comes to Wilson in triumph-the asexual husband has high prolactin levels and has partial color blindness . 39. Q : How prevalent is color blindness ? 40. He dreamed of becoming a pilot himself after the war, but failed the test for color blindness .
