Which of the following statements about proteins aretrue?
A. The three-dimensional structure of a protein can usually bepredicted from knowledge of its amino acid sequence.
B. Two proteins having similar amino acid sequences will oftenhave similar shapes.
C. Proteins containing fewer than 100 amino acids cannot foldinto stable structures.
D. Most proteins contain more than 2000 amino acids.
E. The detailed three-dimensional structure of a protein caneasily be determined by electron microscopy.