本题目来源于试卷: SL/HL Topic B1.2 Proteins，类别为 IB生物学
[单选题]
2. Which of the followi,x58k 4dsyl)r gasrnn 6 29wwing contrib r4pxk9.hcs+(f ovxo ,ledk 0,ute to the almost infinite variety of peptide chal9rko.o+ dh, k4pf0, xvse(cx ins?
I. The sequence of amino acids in the peptide chain.
II. The peptide bonds in the polypeptide chain.
III. The types of carbohydrate monomers in the peptide chain.
IV. Mutations in protein structure.
A. All of the above.
B. I, II and III only.
C. I only.
D. I and IV only
参考答案: C
本题详细解析:
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