21- Covalent bonds between amino acids are mostly responsible fo.. A) Primary st
ID: 211091 • Letter: 2
Question
21- Covalent bonds between amino acids are mostly responsible fo.. A) Primary structure B) Secondary structure C) Tertiary structure D) Quaternary structure E) None of the above structures -Which of the following are features of the primary structure of a protein? A) The number of different amino acids in a polypeptide chain B) The three dimensional structure of a protein C) The sequence of amino acids D) Formation of non-covalent bonds between amino acid side chains E) Association of more than one polypeptide 22 23 - Which of the following pairs of bonds within a peptide backbone show free rotation around both bonds? A) Ca-Cand N-Ca B) C=O and N-C C) C-O and N-Ca D) C-N and Ca-C E) N-Ca and N-c 24- The resonance structure of which bond prevents rotation about which of the bonds indicated on the pe below?Explanation / Answer
Ans 21:- (A) Primary Structure.
Explaination:- the peptide bonds formed are the covalent bonds and are responsible for the formation of primary structure.
Ans 22 :- (C) the sequence of amino acids.
Explaination:- the sequence of the amino acids are determined by the mRNA sequence thus primary structure of the proteins is the sequence of amino acids.