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Question

Biology Question on Principles of Inheritance and Variation

Gene for colour blindness is located on

A

X-chromosome

B

Y-chromosome

C

13th chromosome

D

21 st chromosome

Answer

X-chromosome

Explanation

Solution

Colourblindness is a X Linked recessive genetic disorder in which defective recessive gene present on X chromosome fails to produce pigments in colour detecting cell of eye, as a result the person is unable to differentiate between primary colour red and green.