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BIO NMDCAT Proteins
nmdcat.online June 29, 2026

The most abundant amino acid in collagen is

A. Cysteine
B. Glycine
✓
C. Lysine
D. Tryptophan

📝 Explanation

Collagen contains the repeating sequence Gly-X-Y. Glycine occurs every third residue, allowing tight packing of the triple helix.

📖 Additional Information

  • Cysteine
  • Glycine
  • Lysine
  • Tryptophan

Collagen contains the repeating sequence Gly-X-Y. Glycine occurs every third residue, allowing tight packing of the triple helix.

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