Alpha helices and beta pleated sheets are examples of what level of structure in proteins?

Enzymes belong to which macromolecule-building block pair?

A disulfide bridge between two cysteine molecules is an example of which structural level of peptide bonds?

Which of the following base pairs would never be seen in a healthy double helix of a nucleic acid?

Which of the following elements is not found in amino acids?

Which of the following is responsible for the unique chemical and physical properties of different amino acids?

Which of the following can be found in proteins?

Which of the following is the correct name for the subunits that make up DNA?

Which of the following does not contribute to amino acid structure?

Which of the following is not a function of a protein?