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Who is more likely to be colorblind?

men

women

sailors

everyone with the same probability

It is much less likely for a woman to be red-green colorblind than a man, since this common type of color blindness is caused by a recessive gene in the X chromosome. For a woman, both of her X chromosomes would have to be affected. A man only has one X chromosome, so he is more likely to be color-blind.

Mike Stanaway

7

Christian Heilmann

blindnesscolorsgenesgeneticsmedicinesight

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Answers by country

Republic of Ireland

93%

0%

0%

6%

47

the Netherlands

91%

2%

0%

2%

35

Poland

79%

3%

2%

14%

18816

Russia

78%

4%

5%

7%

316

Unknown

78%

4%

4%

13%

23

Austria

77%

8%

3%

9%

61

Belarus

76%

5%

1%

7%

51

Pakistan

74%

5%

3%

13%

59

Switzerland

74%

6%

8%

10%

50

Kazakhstan

73%

11%

5%

5%

34

Australia

72%

6%

6%

12%

65

Germany

71%

6%

5%

14%

436

Greece

71%

10%

7%

10%

28

Italy

69%

0%

4%

26%

23

Ukraine

68%

6%

5%

13%

115

the United Kingdom

67%

4%

3%

22%

278

Canada

67%

11%

3%

15%

53

the United States

66%

4%

3%

23%

632

the Philippines

57%

5%

7%

28%

52

India

40%

12%

15%

27%

381

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