MCQ practice · SSC Biology Board questions · Chapter 12: Heredity in Organisms and Biological Evolution
Which colour blindness is called the common colour blindness?
Think it through first, then pick an option.
- a Red-green
- b Red-blue
- c Red-sky blue
- d Red-violet
Answer and explanation
Correct answer: a Red-green
Red-green colour blindness is the common colour blindness.
Why the other options are wrong
- b Red-blue: Red-blue is not the common type. The right answer is Red-green.
- c Red-sky blue: Red-sky blue is not the common type. The right answer is Red-green.
- d Red-violet: Red-violet is not the common type. The right answer is Red-green.
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