Defence and foreign policy. One of the key reasons for Federation was to achieve a united defence force which could better protect Australia. Around the 1880s, the Australian colonies had become increasingly concerned over the close proximity of foreign powers.
Protein Structure Determination. The three-dimensional shape of a protein is determined by its primary structure. The order of amino acids establishes a protein's structure and specific function. The distinct instructions for the order of amino acids are designated by the genes in a cell.
Structure and Function Relationships of Proteins. The three-dimensional structure of a protein defines not only its size and shape, but also its function. One characteristic that affects function is the hydrophobicity of a protein, which is determined by the primary and secondary structure. For example, let's look at membrane proteins.