Give an example of an autosomal recessive trait in humans. Explain its pattern of inheritance with the help of a cross.
Sickle cell anaemia is an example of autosomal recessive trait in humans. The genes responsible for this disease are located on autosomes. This disease is only expressed if both the copies are defective. People with a single defective copy of the gene are clinically normal; however, they can pass on this defective gene to their subsequent generations.
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