The primary structure of a protein refers to the sequence of amino acids that
are linked together in a long chain. Which of the following common items
would best represent the primary structure of a protein?
O
A. A burning wax candle placed in front of a small fan
O
B. Two unsharpened pencils held together by a piece of tape
O
C. Beads of different colors joined together on a piece of string
O
D. A dry kitchen sponge sitting beneath a mound of table salt