Proteins are assembled from how many amino acids?

20

The correct answer is Option (3) – 20

Proteins are assembled from a set of 20 amino acids.

Explanation:

• There are 20 standard amino acids that serve as the building blocks of proteins.
• The sequence of these amino acids determines the structure and function of a protein.
• Each amino acid has a unique side chain, and the specific arrangement of these amino acids in a protein chain gives rise to its three-dimensional structure and functionality.