Which of the following trait is controlled by dominant autosomal genes ?

Options

A. Polydactyly
B. Huntington's chorea
C. PTC (phenylthiocarbamide) tasting
D. all of these

Answer

D

Explanation

Dominant autosomal traits are caused by diminant autosomal genes. Some of the dormintly autosomal ingherited disorder in human beings are : Polydactyly - Presence of extra fingers and toes, huntington's disease or Huntington's chorea - a disorder in which muscle and mental deterioration occurs and there is gradual loss of motor control resulting in uncontrollable shaking and dance like movement (chorea), Phenylthiocarbamide (PTC) tasting etc.