Biology Principles of Inheritance and Variation Previous Year Questions Single Correct MCQ
Published on: August 13, 2026

Pick out the correct statements:

A
Haemophilia is a sex-linked recessive disease. A and D are correct
B
Down’s syndrome is due to aneuploiday. B and D are correct
C
Phenyllketonuria is an autosomal recessive gene disorder. A, C and D are correct
D
Sickle cell anaemia is an X-linked recessive gene disorder. A, B and C are correct

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