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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

Genetics quiz Colors quiz Medicine quiz

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Answers by country

Republic of Ireland

95%

0%

0%

5%

40

the Netherlands

90%

3%

0%

3%

30

Russia

81%

3%

5%

7%

222

Poland

79%

3%

2%

14%

18375

Switzerland

78%

5%

5%

8%

37

Unknown

78%

4%

4%

13%

23

Belarus

76%

7%

0%

7%

42

Pakistan

74%

5%

3%

13%

59

Australia

73%

6%

4%

13%

61

Germany

72%

6%

6%

13%

333

Austria

72%

9%

3%

11%

51

Greece

71%

10%

7%

10%

28

Kazakhstan

69%

15%

7%

3%

26

Italy

69%

0%

4%

26%

23

the United Kingdom

68%

4%

3%

21%

254

Ukraine

68%

6%

5%

14%

91

Canada

68%

12%

4%

12%

47

the United States

65%

4%

3%

23%

580

the Philippines

57%

6%

8%

28%

49

India

42%

11%

15%

27%

352

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