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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%

31

the Netherlands

92%

0%

0%

4%

25

Switzerland

86%

6%

0%

3%

30

Russia

83%

1%

5%

6%

155

Poland

79%

3%

2%

14%

17889

Unknown

78%

4%

4%

13%

23

Italy

76%

0%

4%

19%

21

Austria

75%

10%

2%

12%

40

Germany

74%

6%

5%

12%

259

Pakistan

74%

5%

3%

13%

58

Australia

73%

7%

5%

13%

53

Belarus

73%

5%

0%

8%

34

Ukraine

71%

5%

4%

14%

71

Canada

70%

12%

5%

10%

40

Kazakhstan

70%

15%

10%

5%

20

Greece

69%

11%

7%

11%

26

the United Kingdom

67%

3%

3%

22%

210

the United States

65%

5%

3%

23%

540

the Philippines

57%

6%

8%

26%

45

India

40%

11%

15%

28%

308

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