Question

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

• A. Polydactyly
• B. Huntingtons chorea
• C. PTC (phenylthiocarbamide) tasting
• D. All of the above
  

Answer 1

The correct option is D All of the above

Dominant autosomal-traits are caused by dominant autosomal genes. Some of the dominantly autosomal inherited disorders in human beings are polydactyly presence of extra fingers and toes, Huntingtons disease or Huntingtons 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.

So, the correct answer is 'All of the above'.