![4-hydroxy proline is present in](https://www.gkseries.com/blog/wp-content/uploads/2021/12/Biomolecules-Multiple-Choice-Questions-and-Answers-66.jpg)
Q. 4-hydroxy proline is present in
- Collagen
- Plant cell wall
- Keratin
- Both plant cell wall and collagen
Answer: Both plant cell wall and collagen
Answer: Both plant cell wall and collagen
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