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.