AP BIOLOGY

Detailed explanation-1: -There are 20 different types of amino acids that can be combined to make a protein. The sequence of amino acids determines each protein’s unique 3-dimensional structure and its specific function. Amino acids are coded by combinations of three DNA building blocks (nucleotides), determined by the sequence of genes.

Detailed explanation-2: -Levels of Structure The significance of the unique sequence, or order, of amino acids, known as the protein’s primary structure, is that it dictates the 3-D conformation the folded protein will have. This conformation, in turn, will determine the function of the protein.

Detailed explanation-3: -Each type of protein has a unique sequence of amino acids, exactly the same from one molecule to the next. Many thousands of different proteins are known, each with its own particular amino acid sequence.

Detailed explanation-4: -One protein becomes different from the other proteins based on the amino acid sequence. It is possible that two proteins with the same amino acid component but different arrangements have different conformations since the stabilizing forces for the second.

Detailed explanation-5: -Proteins different in length and compositions because the sequence that makes them (their gene) is composed of different nucleotides. Different genes have different nucleotide sequences, and hence different proteins are produced.