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The sequence in which amino acids are linked to one another in a protein molecule is called its:A. quaternary structureB. tertiary structureC. secondary structureD. primary sturcture |
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Answer» Correct Answer - D Proteins many have one or more polypeptide chains. Each polypeptide in a protein has `alpha`-amino acids linked with each other in a specific sequence and it is this sequence of amino acids that is said to be the primary structure i.e., the sequence of amino acids creates a different protein. For a polypeptide containing 20 different amino acids, each occuring once in the chain, the number of different amino acid sequences, i.e., primary sturctures is 20 ! (factorial twenty). A protein containing a total of 100 amino acid residues is a very small protein, yet 20 different amino acid can be combined at one time in `(20)^(100)` different ways. |
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