Give an example of an autosomal recessive trait in humans. Explain its pattern of inheritance with the help of a cross.
Autosomal recessive trait. Sickle-cell anaemia is caused by autosomal recessive trait. The disease is controlled by a single pair of alleles HbA and HbS. Only the homozygous individuals for HbsHbs show the disease. The heterozygous individuals are carriers (HbA Hbs)
