The -helix is an example of what level of protein structure?
1.primary structure
2.secondary structure
3.tertiary structure
4.quaternary structure
5.both primary structure and secondary structure
Question 2
Which of the following is out of order for the Merrifield solid-phase method of peptide synthesis?
1.An amino acid is protected as a BOC-derivative.
2.The BOC-protected amino acid is linked to the polystyrene polymer.
3.The polymer-bound amino acid is treated with trifluoroacetic acid to remove the BOC group.
4.A second BOC-protected amino acid is coupled to the first by reaction with DCC.
5.All of the steps are in the correct order.
The structure of a DNA strand
(A) The structure of a neuron, showing the dendrites, nerve cell body, and axon. (B) Photomicrograph
Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i
(PDB ID 1MBO) Orientation of the protein is similar in
Structure of Skeletal Muscle
Chemical structure of DNA.