Which of the following is false?
(a) Lysozyme has S-S linkage
(b) Ribonuclease has S-S linkage
(c) Heme group in cytochrome c is covalently linked to the protein on two sides
(d) Ribonuclease has SH-SH linkage
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This intriguing question comes from Protein Tertiary and Quaternary Structures in division Three Dimensional Structure Of Proteins and Protein Function of Biochemistry