Which of these determines the primary structure of a protein?
A) Sequence of amino acids
B) Number of hydrogen bonds
C) Ratio of the number of acidic amino acids to the number of basic amino acids
D) Polarity of the R groups attached to the amino acids
E) Number of alpha helices and pleated sheets along the axis of the protein

Question

Quizplus · Accepted Answer

The primary structure of a protein is determined by the linear sequence of amino acids that make up the protein chain. This sequence is determined by the genetic code encoded in the DNA of an organism. The specific sequence of amino acids ultimately determines the unique three-dimensional structure and resulting function of the protein.

Which of These Determines the Primary Structure of a Protein