Multiple choice

The phenotypic expression of an individual are governed by

  1. Contractile and Motile proteins.

  2. Enzymes

  3. Transport Proteins

  4. Defence Proteins

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Majority of proteins are the most variable and highly specialized enzymes. Acting as organic catalysts, they accelerate metabolic reactions. Virtually, every type of metabolic reaction is driven by a particular or specific type of enzyme. In fact, the basis of the phenotypic expression of every hereditary characteristic is a specific type of metabolic reaction which  in turn, is driven by a specific type of enzyme. Synthesis of defective or abnormal enzymatic proteins, therefore, forms the basis of genetic diseases.