Question

Explain autosomal dominant and recessive mendelian disorder in humans

Answer 1

Autosomal recessive. Two copies of the gene must be mutated for a person to be affected by an autosomal recessive disorder. An affected person usually has unaffected parents who each carry a single copy of the mutated gene (and are referred to as carriers).

Answer 2

Answer:

(i) Autosomal dominant disorder = Myotonic dystrophy

(ii) Autosomal recessive disorder = Sickle-cell anaemia