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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

94%

0%

0%

5%

17

the Netherlands

94%

0%

0%

0%

17

Austria

88%

0%

0%

11%

17

Switzerland

87%

12%

0%

0%

16

Russia

82%

2%

5%

7%

40

Poland

78%

3%

2%

14%

16561

Unknown

78%

4%

4%

13%

23

Germany

76%

2%

6%

13%

121

Pakistan

75%

6%

4%

11%

44

Australia

74%

3%

9%

12%

31

Ukraine

72%

9%

3%

9%

33

Italy

70%

0%

5%

23%

17

Belarus

68%

4%

0%

13%

22

the United States

66%

5%

3%

23%

458

Canada

66%

12%

6%

12%

33

the United Kingdom

64%

3%

5%

24%

156

the Philippines

58%

9%

9%

22%

31

India

42%

9%

16%

29%

233

South Africa

38%

38%

7%

15%

13

Malaysia

28%

14%

7%

50%

14

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