Write the symptoms of haemophilia and sickle-cell anaemia in humans. Explain how the Inheritance pattern of the two diseases differs from each other.

Explanation

Symptoms of Haemophilia : Patient continues to bleed even on a minor cut as the patient does not possess natural phenomenon of blood clotting.
Symptoms of Sickle-cell Anaemia : `H_(b)^(S)` behaves as normal haemoglobin except under oxygen stress where erythrocytes lose their circular shape and become sickle-shaped. As a result, the cells cannot pass through narrow capillaries. Blood capillaries are clogged and thus affects blood supply to different organs.
Differences between Haemophilia and Sickle-cell Anaemia.