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