問題詳情
77. Which of the following statements for the structure of proteins are CORRECT? ① A bondbetween amino acids is peptide bond. ② Disulfide bonds in proteins are formed by serine.③ The amino acid sequence is the primary structure of proteins. ④ The coil-coiled motif is thetertiary structure of proteins. ⑤ The quaternary structure of proteins contains two or morepolypeptide chains.
(A) ①,③,⑤
(B) ②,③,④
(C) ②,③,⑤
(D) ①,③,④
(E) ①,②,③
參考答案
用户評論
【艾爾】評論
② Disulfide bonds in proteins are formed by cysteine .④ The coil-coiled motif is the supersecondary structure of proteins.