Choose the Correct Answer from the List Below

Multiple Choice

Choose the correct answer from the list below. Not all of the answers will be used.
-____________: The type of structure to which α helices, β sheets, and turns are referred.

A) amino
B) water
C) protons
D) DNA
E) secondary structure
F) tertiary structure
G) Ramachandran
H) RNA
I) domain
J) cystine
K) proline
L) Sanger
M) D amino acids
N) cysteine