Zoology - Principles of Inheritance and Variation Question with Solution | TestHub

Sickle cell disease is a group of inherited red blood cell disorders that affects haemoglobin, the protein that carries oxygen through the body. Huntington's disease is a progressive brain disorder caused by a defective gene. This disease causes changes in the central area of the brain, which affect movement, mood and thinking skills. Both sickle cell anaemia and Huntington's chorea are congenital genetic disorders.