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1 mark

Select the correct match.

  1. A
    Haemophilia - Y linked
  2. B
    Phenylketonuria - Autosomal dominant trait
  3. C
    Sickle cell anaemia - Autosomal recessive trait, chromosome-11
  4. D
    Thalassemia - X linked

Solution & Step-by-step Explanation

Haemophilia: X-linked recessive trait.
Phenylketonuria: Autosomal recessive trait.

Sickle cell anaemia: Autosomal recessive trait controlled by a pair of alleles on chromosome 11.

Thalassemia: Autosomal recessive blood disorder (Alpha on Ch-16, Beta on Ch-11).

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Try it yourself before checking the explanation above.

Select the correct match.
A
Haemophilia - Y linked
B
Phenylketonuria - Autosomal dominant trait
C
Sickle cell anaemia - Autosomal recessive trait, chromosome-11
D
Thalassemia - X linked

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