What is the optical property of amino acids?

Why does microbial polypeptide need to fold into a 3D protein in order to become functional? Explain in 1-2 sentences. Edit View Insert Format Tools Table

1) Nucleic acids are polymers of Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a a) monosaccharides b) amino acids C c) nucleotides d d) none of the above

Using the answers to the above questions, write a summary of how the amino acid substitution would affect the protein structure.  This is using the questions I have asked.