Which statement best describes the diagram below?
This is the amino group of an amino acid.
This is the R group of an amino acid.
A protein has been made from the polymerization of amino acids.
A nucleic acid has been made from the polymerization of nitrogenous bases.

Which statement best describes the diagram below This is the amino group of an amino acid This is the R group of an amino acid A protein has been made from the class=