Antibodies are macromolecules of which of the following?

Match the following columns regarding the representation of molecular structures:

Column-$I$ (Science)	Column-$II$ (Meaning of molecular structure)
$P$. Inorganic Chemistry	$I$. Molecular formula
$Q$. Organic Chemistry	$II$. Four levels of organization
$R$. Physics	$III$. Two-dimensional view
$S$. Biological Protein	$IV$. Three-dimensional view

Which structure of protein is controlled by genes?

Which of the following amino acids is not aromatic?

Which of the following statements is correct regarding the protein hemoglobin?

$A$ bond formed between the $C$-terminal of one amino acid and the $N$-terminal of another amino acid is known as: