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Represented below is the inheritance pattern of a certain type of traits in humans.
Which one of the following conditions could be an example of this pattern?
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- Thalassemia
- Haemophilia
- Phenylketonuria
- Sickle cell anaemia
Correct Option: B
The inheritance pattern of a particular trait shown in the picture results in haemophilia. Haemophilia is a group of inherited blood disorders in which the blood does not clot properly. It is caused by a fault in one of the genes that determine how the body makes blood clotting factor VIII or IX. These genes are located on the X chromosome.
