Discussion Forum : Biology
Question - Which of the following is not true about colour blindness?
Options:
A .  Colour blind people learn to rely on shapes, patterns, and positions of signs and signals
B .  Red-green colour blindness is the most common type of colour blindness
C .  A colour blind person cannot see any colours
D .  For some people, it might be difficult to recognize colours of traffic lights and signs
Answer: Option C

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